It's not complaining about having a different opinion, it's that the way you present it is vitriolic. It doesn't matter (at least to me) if you don't like the project or don't see the point. There's just no reason to insult and demean the project and its creators.

> and the downvoters

I only downvoted you for whining about downvotes.

It's also specifically mentioned in the HN guidelines:

"Please don't comment about the voting on comments. It never does any good, and it makes boring reading."

https://news.ycombinator.com/newsguidelines.html

There’s also a bunch there about how targeting others and posting complaints about others makes for uninteresting reading so avoid it

Just saying

so yeah, don't do that.

just saying