Hey, @sebbbl:
Sounds like a good marketing strategy to me. Start with an active base that has a vested interest in how share2steem does, go from there. It's interesting that Instagram doesn't have a ban though Facebook does, since Instagram was bought out by Facebook. Apparently, they're allowing some level of independence for the time being. Something is up at Facebook, though. They're making all the wrong moves right now. Problem is, most folks on social media have a Facebook account.
Still, these other sites have the potential to bring in millions, too, so all good there. One step at a time.