I'm not saying you should feel bad about yourself, but it's good if people can recognize what WP is up against.
Deletionists tend to confuse their personal ignorance (often of a website called "Google" [yes I know how notability works, no that's not an argument against not bothering to even trivially check whether an article can be improved rather than deleted]) with a mandate to sabotage Wikipedia.
People who remove cruft from articles, rather than speedy deleting articles that aren't about Pokemon, are not deletionists and should not be invoked as human shields for deletionists.
Phrases like "you've misunderstood my words" can sound quite confrontational and, in my experience, tend to provoke defensive responses rather than Cooperative Idea Sharing TM.
I find ideas flow more freely and coopertively by taking the miscommunication blame on myself, "Oh, I must have been unclear. We're on the same page about X, but what I was really trying to say is..."
Anyway, that's just my feel on the meta-interaction above. Carry on.
It would only be natural for us to take this resource as not-so-reliable, for that it is as easy a man to spit on the floor to infiltrate Wikipedia with false information. Yet, we usually don't. We usually just go ahead and trust what we see on Wikipedia, and maybe that's because it looks so convincing and reliable.
If Wikipedia cannot handle vandalism, maybe it should then warn it's users to realize that there is some higher chance than they might expect that the article they are about to read might have been compromised in terms of correctness, or has never been correct to begin with. Instead of displaying full-page banners, perhaps they should spare a couple of lines to such disclaimer statistics.
* https://en.wikipedia.org/wiki/Wikipedia:General_disclaimer
I'd say Wikipedia is really to blame for creating this false sense of trust on their platform. Not that they are completely unreliable, but they are less so than they seem to an average user.
But that is not what the author of the comment did. They regularly messed it up, and then complained that other people didn't clean it up fast enough. It's like throwing out trash every day out of the window, and then feel offended that there's lots of trash on the street. Of course it is, you made it! Stop doing it, and there would be less trash out. Start cleaning up, and there would be even less.
I'm ok if the person just has complaints, but if he has complaints about the thing he himself actively tried to break - no, you should not feel entitled to complain about that.
It is fascinating that some people talk about global topics like climate, evnvironment, etc. and then can't even resist messing up things that is under their nose, given to them completely free and extremely easy no to mess up - just use it as a normal person and enjoy! But no, he needs to vandalize it and then complain it wasn't cleaned up quickly!
I can assure you that there are at least some who are unaware that even they can edit a Wikipedia article. My housemate (a computer engineering student) didn't. My girlfriend seeking her doctorate degree didn't. My 2 roommates who managed to get to the first 100 at our national examination, also didn't.
Printing something in a book doesn't make it true, and putting it on a website also doesn't make it true, no matter how professional and authoritative-looking the css is. You trust something because you trust the motivations and expertise of its sources.
It doesn't have to be a negative concept. It can be as simple as picking up a can as you walk by it on the street, and otherwise having a completely normal life. People with you can then see "huh, I can contribute just a little bit, feel good about it, without going full hippie high-viz jacket and tongs with a trash bag every weekend."
That sounds very noble but imagine every time you lifted a bit of litter you had to argue with someone about why it should be put in the bin. Sometimes even when you win the argument they take it out of the bin and throw it down again.
That's how many qualified-to-contribute people feel about Wikipedia now. I run all my web searches with '-wikipedia' as I lack any confidence in its pages. But that's only half the battle, it doesn't address people who arrive on topic-specific fora with statements like 'Wikipedia says that..'
Take the tor project. It is very easy for a exit node operator to be bad. If you wanted to you could go and compete on who make the most egregious changes to traffic before the tor project bans the node. If the wast majority of operates did this then the project would die. Similar, torrent sites and BitTorrent is easily poked at by bad actors that either insert malware or do other bad things to the network. It too only operates on the basis that the wast majority do not have the intention to bring it down.
Of course the same could be said by HN. If a wast majority of users ganged together to push a specific agenda then it would likely take a while before the moderators could intervene. The upvote/downvote and flag system operates on the concept that the majority of users operate as independent agents and do not intend to try bring HN down.
In the end however for all the weakness and dependency on the statistical good nature of people, sites like those tend to be resilient in the long run.
When the bot doesn't catch those, there's almost always a couple of people looking at every change as they stream by, but that's an uphill battle that mostly catches the obvious bad edits.
The rate of change to recent change reviewers is too high to catch the more sophisticated vandalism as it happens, that's when things start staying up for weeks or months until some random person browsing the page notices, and hopefully fixes it.
What was surprising was just how easy it was. We started with minor edits in small articles, just adding our own name to some list of notable achievers.
Then, due to competition, we would add an entire paragraph that fabricated an event. Like adding ourself as a conquistador of some made-up novohispano population in some made-up location.
Imagine how compromised wikipedia must be by people with agendas more lofty than uni students passing some time.
Hell, just the other day I removed "See Also: Donald Trump" from one of the major fallacy articles. The history showed that the scathing political commentary was up there for over 8 months and nobody cared.