True. But they've never posted very frequently. So maybe this is just an important issue for them.

Also, are baseless allegations OK here?

This. I just don't post here frequently or check HN. Rest assured I am a real person.

I have mentioned my Twitter in previous comments (https://twitter.com/peterkimfrank) and you'll see my submission history maps pretty well to my role at my company (https://dev.to/peter).

This was a weird comment thread to wake up to...

Well, personally my guess is that it's actually a legitimate user since the username is based on their real name, and they've linked to their Twitter account in the past. It'd be pretty silly to sell an account so closely linked to your identity. Unless it was hacked and sold without the user's knowledge I guess.

Plus it'd be really stupid for the buyer to mention it. How about stopping this thread derailment?