They are not "trying" nearly hard enough. I've seen the exact same bots every single day for a month now, the types of bots that are basically holding up a giant sign saying "I'm a bot!". These are the cases that need urgent attention, and the ones that SE seems to be completely ignoring. I don't care how many accounts they've banned in the past. 3704 out of the total number of bots running around on all servers is a complete joke.