I used to attempt to help people in Technical Support, but I usually ended up making things more confusing/not adding anything of value. Most of the time, I was pointing people to the Technical help sticky, as well as performance issues FAQ in the wiki, so...
I think the Technical Issues FAQ and the Performance Issues FAQ should be merged.
Honestly, the Performance Issues page is a little short and the information would be helpful in a lot of troubleshooting situations. I think it ought to be moved into the Technical Issues page for the sake of simplicity (most of it is just common sense, but that's another matter entirely...)
I don't know how to edit the wiki, and would not have performed the merge anyway because I wanted to know what the Wiki community consensus would be. Is this worthwhile?
Well, the reason why the two are separate right now is because technical issues is about getting the game installed/running and performance issues is about getting it running better. They're simply two different sets of troubleshooting, split up so that the pages aren't so long/too many things in the TOC making it difficult for someone to find what they are looking for.