My account was banned too, and starting to believe there is something to that idea of getting too high too fast as I was able to hit the top 30s a few weeks ago. Alas, all anecdotal...
But my question now is this: For those who've been banned before, when did you go back to botting? I haven't been able to pull the trigger on restarting DB yet, but this manual grind makes it so tempting...