The chat is one of the most strictly moderated places of this entire forum, so claiming that the chat is the place for spam is utterly wrong. "What you did today" is the only place with nigh freedom of speech, and the off-topic section is the step after. Seriously, what is it with you guys and removing everything that rhymes with jokes? OH SHIT, THEY'RE HAVING A BIT OF FUN, WE BETTER CHOKE IT BEFORE WE EXPLODE.
The irony of it is that Hive, as far as I've gathered, aims to be the more liberated modding site for WCIII, whilst WC3C is the strict one. I can't really claim to know much about WC3C, but Hive is one of the least accepting forums I've ever been to. Nothing is legal here.
Maturity does not equal no fun at all.
Lastly, if you think the Off-topic section is all shit, then instead of pondering whether you should close it down or not, hire more moderators for that section. It's a much more useful solution.