It has, because of the server hardware, and trading seasons and people sharing links on twitter and suddenly a thread gets a thousand views in a minute. But they're figuring out memcached with xenforo, as apc gave nothing but trouble so they turned it off. They are still trying to rebuild the search index, but they have a live site and down = sponsors walking away immediately. Their trade discussion forum is still vbulletin due to the customizations, they're hiring some zend certified guy who understands xenforo rather well for quite a bit of money to get that stuff ported over. But the 'omg he scored' posts are 25 a pop every time something happens. They use 25% less servers, no caching at the moment and figuring things out as they go. Fun fact: with just vbulletin they weren't able to use search, and they couldn't handle 7500 users with 25% more servers in the array on apc cache. so xenforo is doing quite well. just not as well as it could.