Not really. Still at it. I've been removing accounts that I've banned (there are thousands), dem Russkies have been creating accounts like madmen every single day for a couple of years now - who knows why, maybe it's just an exercise to keep their fingers warm. Now, though, rather than banning them, I'm deleting them.
I did find a bunch of accounts that had home pages and signatures with URLs that had posted stuff (which makes the signature visible to a web search bot). Not wanting to compromise my own computer, I deleted those that looked more suspicious and rendered unusable the ones on older accounts that haven't logged in for a while.
I'm still slogging away at it. If you're keeping track of the total number of members (Home page, right hand column below "Hot Topics" in the stats area) you'll see the number of members has been declining here, from about 18300 when I started this exercise to 17928 at this moment. I'm bloody tired right now, not going to stay up any more, but will get back into it tomorrow.