I am not waiting for Mixero referral programs. I think the monthly BTC price prediction contest has done a good job of helping Mixero reach many potential users on AltcoinsTalks. I participate in it every month and always hope that I will be lucky enough to correctly predict BTC price to receive reward from Mixero ^^
The point of a referral program is to promote mixero outside of altcoinstalks
This is a limited community, and when the company create a referral project they are basically paying for influencers, other domains, etc to promote their serbice everywhere for a small fee.
A good referral campaign can have a tremendous impact. Just look at binance for example. They are doing good referral campaigns until now. I have earned about 0.05 btc (which wasn't as much mlndy as it is now) with their referral campaign, as I promoted it in a famous portal in Brazil long ago...