As far as botting goes, it's still not fixed. There was an obvious aimbotter named 'Vinesauce' that went about for 2 weeks getting kicked out of every match (and sometimes rejoining). I can't fathom having this little moderation/development on a game that still must be making millions per year.

In my experience with Valve's servers in the eastern north american region, while the bots aren't completely gone, there are far fewer of them. Online discussion has indicated this isn't necessarily the case for non-NA regions.

I saw the vinesauce bots. It's my understanding that Valve bans any account kicked from an official server from rejoining that server for half an hour or so. Game harassers run small fleets of their bots. It's likely just another same-named bot joining rather than the same one rejoining, no?