In all the years I have been posting here, we have had trolls and socks. That problem seems to have been sorted for the most part. But in all the years, there was never a plague of Bots. Hardly a day goes by without some annoying message in my PM box from some bot who says my profile is interesting (which is interesting in itself, as my profile says nothing). So what have you changed, that bots can access our profiles and infiltrate our PM boxes?