I think you need to change the distribution of the coins. At the moment you are giving a huge windfall to the first 50 people at the expense of the others who are basically taking the same chance as the first 50. Why not just make it an even, gradual, sliding scale for everyone who contributes until the IPO closes. How does the guy at place 51 feel now? Pissed off, and he supported you just as much. Just make it one sliding scale for ALL IPO contributors.
As for whether this is a scam or not, it sounds as ridiculous as NXT did, and that has made millionaires. It's a bet on an unknown, just like NXT was. The obvious difference is with the language barrier for the Visacoin guy using english. His brain might be just as interesting as BCNext's.
The original NXT client BCNext showed was some sort of selling point, but it definitely didn't scream coinmarketcap top 10 in a couple of weeks.
Anyone who missed out on the NXT genesis block and believes the NXT stakeholders are greedy or undeserving should send this guy 1 bitcoin now. If not, they should accept that their tolerance for gambling is lower than those who did. You can't have it both ways. NXT and Visacoin smell the same at the same stage (i.e. COULD be a giant scam)
It doesn't 'smell' the same as NXT. Not by a long shot. BCNext at least shared technical details, this VisaCoin guy just keeps spouting PR-drivel about how his coin is so easy to use with no real data to back it up. I realize English isn't his first language, but looking past that, he really hasn't said anything worthwhile if you dig into all his posts so far.
Also, I doubt any refunds will be sent out. People have asked earlier and he never responded. He's ignored almost all the skeptics as well. This is looking more and more like a massive scam.