golos.io had a lot of other problems (users gaming the system, hacking its weaknesses etc). you may find intresting this text (its in russian, hope that will not be a big problem).@crypto.piotr,
as for the 50-50 reward.schema, if i understand it correctly, it was rolled out in HF19 in december 2018 (more details, in russian)
i dont think my comments are that great / informative.. but at least they are emotional ;)
ps. have you seen this article? sounds optimistic!