Well, the support and hacks etc. for threads is awesome, and 6.5 will have some nice features. My site (threads forum) has almost 1 million posts now and is very slow when compared to large VB sites I think, a lot of that stems from the search feature not being up to par, the good news is that they are addressing that issue in the next few versions.
I really like 6.4 as far as features go but was dissapointed with the speed decrease from 6.2, I hope 6.5 will be much faster, looks like they are heading in the right direction, I think Rick and others at Infopop realize the problems and are working very hard on the problem and should get it nailed very soon.
