I'm pretty sure "Humans, please ignore this post" wasn't serious, and this article is mainly for humans.

Or their mom might be a hacker.

Incidentally, there are many cases where I don't care about my username at all and have to come up with something. I'd find it acceptable if they'd just give me a number and a password, or let me register just with a password (perhaps provided by them?), maybe plus e-mail.

Exactly - the term's quite loosely defined.

How do you know meetups all meetups attract "losers"? What is - to you - the defining characteristic of such "losers"? How certain are you that your personal experience with one kind of meetup generalizes well to all meetups? How do you know there are fewer or no losers elsewhere, e.g. on the internet?

This is a good place to post your poem.

Thank you for this post. I have made similar experiences, and feel much more dim-witted when speaking in person (especially compared to others).

Upvoted for changing your mind.

Is ) not sufficient?

Just in case you're not aware, this is a double-comment. I've seen this with another comment of yours recently. Probably happens when one double-clicks the comment button.

You might want to post this on the hpmor subredit page instead - or in the latest open thread. I don't, however, think that a top-level discussion post is necessary for this.

In any case, Snape saying that the number of valence electrons of carbon is a meaningless fact is weak evidence that he didn't read it in Harry's mind.