Does that mean that bidbots that claim a max profit of 10-15% are actually 150% votes about, if you bid at the right time?
I still think they're a bad choice because of who they profit and their lack of curation of any type to ensure that the posts aren't just utterly shit.
If all it takes to make the profit of a bidbot is to figure out a way to get the delegation and users...ehh... I think it should also take the hard work to ensure that you still maintain quality, so we aren't running Steem into the ground by going against the founding principals.
I've been testing them lately and yeah it does seem that you get ~10% profit after curation cut. Thing with them is that if someone else overbids in the same voting window as you your ROI can drop down all the way to -5 to -10%, some don't even have a lower limit.
But yeah... what you said stays true for them as well, that's why we decided to create something different and soon we will be experimenting with a different kind of bid bot as well with different rules but still non-profit and having the buyers best interest in mind.