*"Goldvoice.club allows authors to pay "cashback" to curators, rShares received are calculated and author can decide which % of reward received going to be transferred back to curators proportional to rShares."*

That's very cool. I would certainly have made use of that option. It's nice to offer the extra promotion to those who participate.

*"The moral is, there's no need to appeal to developers, all that could be realized by a group of interested users."*

I don't see why both options can't be available. Your option, notably, requires trust if using bots rather than a decentralized blockchain, so appealing to developers is still worthwhile. Or, we can simply code the option ourselves and post it to Git.