I don't know if this is the right area to post this in, as it has more to do with the site than the forums, but here goes.
You guys (the devs of MyBB) should look at doing a bit of optimization, have you checked the resource usage of MyBB's home page, when just sitting idle?
I've opened a couple of other JS or flash intensive sites in for reference.
But still 184MB?!?! That's more than Twitter, FB and NEws24 combined!
So I did a bit of digging, and I think I've found the culprit, it's only that high when that stupid irritating WebAfrica add with Mandela and Tutu shows. When that's not showing it drops to around 110MB (still double the usage of the other sites, but at least a wee bit better).
Anyway, just thought I'd bring this to your attention, as I am now much less inclined to leave MyBB open during the day.