Doesn't affect developers, it's the publishers who get paid. Developers have already been paid by the time time little johnny picks up CODMW for 15 quid.
I think it's actually a decent solution to the whole pre-owned developer debacle, but it's still a dealbreaker if the PS4 steer way clear of this.
If PS4 has nothing of the sort, and Xbone doesn't improve Gold/copy ps+, then it's PS4 for me. A shame, because the 360 was excellent and I'd like to carry over my profile.
My own slice of the internet is here: http://www.maulsquad.com - it isn't very good.