If you go to the index a thread is located in (High End Forum for the Stax thread), look to the right of the thread title where the total number of posts (23,000 or so) is listed and then click that number. A table will pop up with the number of posts by each participant in that thread's history.
It's good that you've helped out the newbies since that's a large portion of what the thread is all about. It can be a bit tiresome to answer the same stuff over and over for years though. I've thought about putting together a kind of "Stax Beginner's Guide", but the combination of headphones and amps is too great to concisely organize it all.