Opps, but what an odd place to have an intro forum. No wonder I couldn't find it.
The first thread in the first board ..... simply defies all logic ......... now that is odd or NOT .................
I'm not surprised you didn't see the "introduce yourself" thread. A section called "help, guides, and rules" isn't exactly the most exciting sounding part of the site and not where most people visit (even if they should). SO you're forgiven.
However, you're better off finding topics that interest you on your own.
The easiest way to see whats hot or recent is to just look at the threads. When ever someone makes a post it takes that thread to the top pf the page. SO the most recent are always near the top.
The most commented on posts have all those little page numbers below it. The more numbers, the more posts there are.
SPend some time exploring the site and you will see it all for yourself.
Oh, and welcome!