It’s hard to say. The last few days a lot more people joined the forum than usually, but I guess that mainly has to do with the new fairphone being announced! 
But I can see that many of those who joined only viewed one topic, didn’t post anything and spent little time on the forum.
I don’t know if new members can vote but it doesn’t say that they can’t in the topic about trust levels:
PS: I’m not saying that it’s a bad thing that someone recruits sailfish enthusiasts to our forum but this sort of campaigning is one reason why the fairphone team shouldn’t take our poll results at face value.
Polls are just for the community to have fun with and not to make decisions for Fairphone.
PPS: I think its quite obvious that we have a lot more Sailfish enthusiasts now than before the FP2 was announced. In the original poll there are 219 posts by 106 users and only 23 posts (by 18 users) mention “Sailfish”. As opposed to e.g. 28 users mentioning “Ubuntu”, 34 mentioning “Firefox” and 34 mentioning “cyanogen”.