thanks @andrey – don’t forget us when you’re the president of Ukraine!
we already have a few badges for referrals:
if you notice, it’s not just the number of referrals, but also the quality of the user – we do this through the use of ‘trust levels’: user -> basic -> member. this will help guard against spam.
as for other initiatives - absolutely agree! there are some great ideas in this thread already – am happy to support anyone who would like to spearhead their own initiative.