Hi everyone! I did my little experiment, and I found that buying upvotes at https://steembottracker.com - is not a profitable thing.
See for yourself: I paid different six bots in total 1.66 SBD, and got only 1.458 SBD and 0.378 STEEM POWER.
It turns out that I even went into a small shortage.
0.25 SBD to 
0.14 SBD to 
0.30 SBD to 
0.70 SBD to 
0.10 SBD to 
0.17 SBD to 
Why did this happen? Why there is no benefit from their upvotes?