Their next blog post talks about being banned from Twitter because they put in a birthdate that made them under 13, so I'm guessing at some point they decided that they were reborn as some sort of collective (Twitter profile says "hardware witches | server maids"). Thus, "we" instead of "I".
It's Hacker News. This kind of stuff is pretty normal here.
no it is not
It is. You have to understand that the way you see yourself is not necessarily the way other people see themselves. For centuries people hid this from society, but now people are open about it and it turns out that it's pretty OK.
doesn't make it normal
I'm not a native speaker, but AFAIK if you use "they" to avoid specifying a gender, it's "singular they" (https://en.wikipedia.org/wiki/Singular_they), so using the first person plural still doesn't really make sense...
First person pronouns aren't gendered, so even if this were a they/them using person, the [email protected]' doesn't make sense. What it did do was distract form the blog post, to the point that I stopped reading it.
I just kept picturing someone creepily talking to their hairless cat while saying 'we'
Sometimes in science, people use the collective “we” in their writing. But like you say, the OP is using royal “we”, so I don’t think scientific writing is the reason either.