i have thinking about this.
i think all member who post first, has to put an update for each site he/she put since he can put his referral link on it. if he failure to do so, you can punish him.
this will encourage member to stay active keep information regarding a site up to date. and will warn others if the site become scam or changing it's TOS.
second.
i have looked around, but did not find any info if the site can be posted here is free site or "forced to invest" site (ie, icybux, buxify, incrasebux). perhaps you should clear this.
in my opinion, if you can, you should put "forced to invest" site separate from free site.
once more, about first contest. i can not find any referral link in my account/profile. how can the new member know whose refer him?
thank you