I don't, the only change I have seen in the community since the "drastic change" is the old timers bitching and predicting "the end of days for GOG" but that is just me.
I'm thinking ahead a bit on this particular issue. The more popular Gog gets, while offering more "current" games, the more we risk the community of veteran gamers being drowned by a type of newcomers that we don't necessarily want over here.
Though that's just a risk, and I myself think the advantages of Gog becoming a stronger force that can push DRM-free onto newer and newer games far outweighs the negative.
And yeah, I can agree that you see a bit of that "oh no, change!" attitude around at the moment :p
I see that to a point but, like you said a lot of people who are not signed up here are already dedicated to other place selling new games and unless they are extremely anti drm they won't come here and if they are extremely anti drm then they will fit in quite easily. I don't see us getting many unwanted people.