Bots automatically play ladder tournament to get some real rating. This tournament play is time-limited (50 games) and is also rating-limited. If a bot gets a given rating, it leaves the ladder.
Bots for go have limited power similar to what is in the Katrain app.
Games in go with bots are automatically rated and terminated after two consecutive passes. If this proves to be successful it could then be used in all go games.
I assume that bots will be created for more or less all types of games.
I believe players should be able to insta-quit out of bot games in the ladder without losing position. I just don't come to sites like these to play against bots, but I may be in the minority.
I've played with a few go bots now in the ladders, I must say I largely enjoyed it. They are not of superhuman strength - but I only won once so far. Generally the way they are weakened (whatever that is in detail) seems to work ok, I only saw one obvious problem: in the endgame they tend to pass sometimes before the game is over. Should be straightforward to check for that I guess.
Little Golem