What if beside merit revolution upgrade a verification policy and add telephone number verification. Let's say Jr Member upgrade needs to verificate telephone number. Many sites already done it exchanges, steemit etc. It's much less comfortable for cheaters to buy 10 or 50 simcards than set up 50 emails... I think it could cut much more spam than 1 merit need

I'll get right on that, just as soon as hell freezes over.