Y’all probably knew this, but I just found out by accident –
At the top of the list of threads, in the gray area, it says “Thread/Thread Starter.” If you click on “Thread Starter,” it will sort by – who started the thread! Alphabetically!
M&P – but ATMB…
Well, I didn’t know it … neat! Apparently the default is to sort by “Last Post,” but we can also sort by “Replies” and “Views” (in addition to the “Thread/Thread Starter” option you just told us about). I’ve learned so much stuff like this by checking ATMB every now and then. 
Thanks, twickster!