Seems like DAZ is doing a not-terrible job of handling the fallout.

The mods have not deleted the thread complaining about it, and in fact are keeping the people who are happy about the giveaway from posting in it.  They can post about their joy in other threads, but the complaint thread is for people who feel shafted to vent. (This seems like a good way of handling this kind of thing.  Separating the feuding parties keeps things from getting too heated and personal, but still lets everyone have their say.)

And from the hints dropped, it seems people who actually ask for a refund are getting it, even if they bought it back in September. 

Still, it's not like this hasn't happened before.  You'd think they'd be prepared.  Most of this could have been headed off if they'd given early adopters a bone to begin with.  A voucher?  The M5 bundle for free, a week before anyone else can buy it?  A month or three free PC membership?  Probably would cost them much less than full refunds, never mind the hassle of dealing with the complaints.