BTW, somwhere in thread i posted how many SLM i earned in 4 years i think trough PoB. It is more than good
Yes I remember we did that calculation and the result was quite interesting, but PoB becomes more interesting than Dash-like Masternode only after some year and the Burner needs to have its computer connected all the time, which means costs that probably PoBing is not covering, and the collateral is lost forever, that's probably the reason why PoB hasn't become popular.
If could be possible regarding to PoB to make possibility that people have choice for instance after 80 or 90% of Decayed burnt SLM to withdraw the balance, as with the small amount left, reward will come like never, especially if diif is big. But that would nightmare to implement i believe.