There are 1400 accounts that are not socks that are probably pretty happy that more socks got kicked out. Then there are a few people in here screaming that we shouldn't kick out socks.
This isn't true, as each person was allowed to register two accounts, so the number of unique stakeholders drops. Also, many sock puppet did slip through when they were given AE stakes. I think the real number of unique users is less than 500
I agree with you that probably some socks did slip through, and some people did definitely have two, but it wasn't nearly as many as what you would think. I would love to go back and get two, but actually I just got one because back when it was time to register, I didn't know how awesome NEM would be. And there were a lot of people just like me.
There are actually over 600 BTT users that only registered 1 account that made it through the very strict and extensive sock puppet hunt. It was always clear all along that 2 accounts were okay, so we can think that most people just registered 1. And while there definitely a lot of people that had two accounts and we all kind of think it is BS when somebody bought one for their "wife", there really will be people that bought 2 and one really was actually for a brother or coworker. So just because somebody has 2, doesn't mean they are a sock (though I think most of the time they are. hahahaha)
Furthermore, that is just the BTT holders with 1 account, there are also over 500 unique NXT AE accounts. And again, NXTers really have no reason to divide up accounts as it just makes things more difficult. And it was told to them from near the start to not separate their stakes but to send them in together to make life easier for Pat. Now, one problem with this is that some few people might have BTT and AE accounts, but again I think for most people it will be one or the other.
So while there are probably some really smart and tricky sock masters that got through and some people got 2, they actually won't be that many. In addition, there will be lots of BTT holders that missed their chance to register earlier but will redeem at launch. Again, we can assume that most of these are people with one account that didn't know how to register or didn't get the notice to register. When the sock master's registered, they obviously registered all their accounts.
So, considering these things I am pretty sure that there are well over 1,000 unique users in NEM.