I do not think Steem - Bot service on https://steembottracker.com/ is not profitable. Most of the Bot put Cap on profit section. Therefore, whether you have chance to get more valuable vote than you get under Capped.
Onthe other hand, Bots are not Capped - People bids until the bot turn into loss rather than profit. I do not understand why these bot are malfuntioning and no one here to notice that. Because everyone send bid for profit not for loss. 