Bid bot use have been booming lately which has let to over use that causes it to be so that profits from them are hard. I tested few of them some time ago trough steem bot tracker. Upme bot showed nice 15% profit possibility, but at the very last moment some one vomited 40 sbd bid, switching the rewards from +15% to -15%. I tested some smaller ones too, and I think at the end of the day I made small profit. I think alot of people don't realize that they don't make much money from bid bots, and are just trying to get rich fast.

WARNING BEFORE USING BOTS: Hive account@grumpycat has started to down vote people who use bid-bots that vote posts that can be over 3,5 days old. Reason for that is because some people were abusing those bots by buying upvotes at the very last moment before payout, making people incapable to react fast enough and flag those spammy posts.

To the topic of being mad at bot users. I think that this economy is rich gets richer anyway, so I don't see anything bad about it realy.