>Between that and you calling me "Mike" even though I have no idea who you are, I have to wonder if you think I'm somebody else.
I'm not the person you are responding to, but why would you be surprised that someone is referring to you as 'Mike'? Your username is, after all, mikeash, and just this week your post on arm64 was on HN and you were participating in that discussion.
It implies familiarity to call someone by their first name. Combine that with certainty that I'm active in discussions I don't remember taking part in, and I start thinking of mistaken identity.
You can browse a hundred HN comment threads without seeing anyone call anyone else by their first name. In the rare event that it happens, you'd be hard pressed to find an example where the people didn't already know each other.
I'm not the person you are responding to, but why would you be surprised that someone is referring to you as 'Mike'? Your username is, after all, mikeash, and just this week your post on arm64 was on HN and you were participating in that discussion.