You're all nerds, you nerds!
I don't have very good wankdar, but every so often something on friendsfriends makes me go WTF. And this is one of those times. I know no backstory, and YMMV.

Anime conventions. Lots of people wandering around spending loads of money on their beloved, insanely overpriced hobby. After the day's festivities are done, the crowd breaks up and everyone does their own thing until the next day, and this is where our stage is set.

Some people (cough) are slaves to our circadian rhythms and sleep from midnight to eight. Some of the truly broke and/or hardcore never leave the convention for all 72-odd hours. Some people gather in hotel rooms to chat, or gloat over their new purchases. And some people gather to get smashed, in the grand tradition of parties everywhere.

You'd think that whatever a person wants to do after hours is their own business, right?

...right?

Apparently not. (Involved section is the last part of the OP, where the big paragraph begins.)

Theorized here:
- Getting drunk is the only acceptable way to spend one's time after a con.

- Watching TV makes you a loser. ...even though this is an anime convention, dedicated to television shows and movies. Um...

- Judging people for gathering and doing other things is good (you suck because your fun is different from my fun!), but judging people for drinking is wrong.

- Party people are the only ones who care about other human beings and are the only ones in tune with the cosmos and enlightenment itself.

Ohhhhkay then, so much for different strokes for different folks.

[Afterthought: I thiiiiink the OP may be an animator, which adds an extra flavor of the PTBs bitching out the fans - but regardless, I am baffled.]