It frustrates me that people dont do some research to understand how the bid bots work before using them!
I often bid nearer to the end looking at a +ROI and then someone comes in and bids way above the reccomended bid and makes it go way -ROI. Its out of my hands but frustrating because in this case it affects all other bidders
It is frustrating indeed, as you don't need to be ill informed to lose. Some bids come so late, even an informed user might end up with a negative ROI. This is what my 0% ROI proposal aims to solve. Sure, you don't get to make money, but you don'y lose either. A compromise I believe it's worth considering.