I'd love to hear more about the potential mysql problems with large tables like this and any possible solutions if anyone has any.

I've used the converter in order to switch my vbulletin forums over to bbpress and so far so good. It was not a large forum '30k members 300k posts', but it was large enough to get a general idea about whether or not it would work.

I am NOT a server admin so I can't talk 'techy' about how my site is doing other than to say that I do not notice any difference in speed between the vb install and my bbpress install.

I am NOT yet using any type of caching scripts and I have not optimized mysql in any way. This is a straight out of the box Debian install.

The only metrics I do know is that my server load is the same, and I have no problem handling hundreds of concurrent users. Of course this is a dedicated colo server with plenty of resources. *We have not yet gone live with the bbpress forums install, still testing everything and writing custom theme/plugins*

I do have friends that run forums with posts numbering in the millions. I do not believe they have yet tried a conversion, nor do I think they will.

The converter plugin should be available early next week for anyone that wants to try it out. *STRONGLY SUGGEST BACKING UP YOUR DB* I have already sent Jeffro a twitter link to the download.

**A 2nd/3rd/4th set of eyes on the plugin code would be greatly appreciated!