2chan anime/random boards..

# Anime General
# Anime Random (img)
# Anime Random (may)
# Anime Random (dat)
# Anime Random (nov)

what's the difference? or are there really 5 random boards like /b/?

it's most likely a tacit arrangement, whereby people know what goes where without rules or direction.

for instance, GameFAQs has two anime boards - their explanation: STUFF ON TV, underground weeaboo stuff like haruhi.