From the Community Guidelines:
Be cool. Don’t post or encourage insulting, bullying, victim-blaming, racist, sexist, violent, or homophobic remarks.
Stunt accounts and throwaways may live, but sock puppets, astroturfers and spammers will die.
Assume good faith and like the good. However, flag the bad, and avoid contentless comments.
Enforcement may be lax or draconian as befits the whims of the Entity. The rude will be eaten first.
New members who are curious about the use of memes as a response to comments might appreciate the discussion at (slurping loudly), where attitudes toward using gifs are talked about.
[Oops, that should have been a general reply, not specifically to @Melz2.]
