I guess I'll chime in with the "whoa, wasn't expecting this route" deal.
My issue is I don't have a lot of time to devote to SF/WoX and the mods. Honestly it's been over a month since I've flown any of them but FE, and then we're talking maybe 3 hours in the last month.
So, while I have the time to DL a freeware mod and check it out and enjoy it, I can't justify spending the money on any payware mod since I know I won't get my money's worth. Not the makers' fault, just my own reality.
I agree somewhat with the philosophical "if person A is charging, what's to stop persons B and C?" outlook, and I too am concerned especially for our foreign members for whom $15-$25 is not chump change, and these sims may be the only thing that can run on their lower-end PCs.
Unlike MSFS, our community is vastly smaller and I don't believe is large enough to make payware viable. That is, they can't sell enough to quit their day jobs. I've known people who deliver pizza or the newspaper as second jobs on the side, and I think they could possibly make that much money, but not as much as those MSFS guys who have an install base of hundreds of thousands and not just thousands.
I don't think it will make or break the games, either, I just personally regret that everything isn't done gratis. Probably mostly because every game I've used mods in I've never gone payware: F4/F4:AF, rFactor, various Q3A-engined games and Unreal-engined games, and so on. Only Red Orchestra did I buy, but that was a full commercial release.
Payware is for people that dedicate their time to a handful of games. Freeware is for people like me that have more games than mods on their HD and can't spend too much time on a given game.