That's what the "supporters" section is for. It requires a pretty modest donation to switch, which turns out to be useful not so much because Tony gets a bit of extra money (as I understand it, the money from supporters is much less than the hosting costs) but because random trolls and drive-by spammers and such don't want to pay, so in the unpaid section, we can use the on-topic requirement to keep things friendly, civil, and generally nicer.
Supporters are welcome (and encouraged, even) to go *very* far afield as long as things are kept mostly civil, and really, the people who care enough to pay a bit to support TONMO are quite a civil bunch, so I can't remember any need for moderation in the supporters section since I joined. It's just a $10 donation for a permanent supporters status, so it shouldn't really be a burden on anyone, see
http://www.tonmo.com/store/subscribe.php
The closest thing outside of supporters would probably be "Our Community," but that's still primarily for things TONMO-related in some way. I actually really appreciate that members are very good about keeping things mostly-on-topic, so the staff very rarely deletes any post that isn't spam, so it's really nice that it's a self-mediated way for us to build community without any need for "police presence," since drive-by trolls don't generally seem to see TONMO as an appealing place to practice their shenanigans.