So there are a ton of level 90 bots up at gundrak at the moment and especially during the night. Last night i went up and farmed them between 4am-5am and gained approx. 150 bloody coins as a hunter. There was another 2-3 players up there at the time farming too. The server in question was Kazzak, unfortunately there are too many alliance 100s doing the same thing right now so i can't go back and get a value for during the day. The following printscreen gives you a good idea of the amount of them:
Screenshot by Lightshot