This makes absolutely no sense. If you were buying an S2 license anyway, what difference does it make to you what changes were made to the demo?
It seems likely that you're just lying about planning to buy S2 in some ill-conceived threat to retract your intended purchase.
Guess what? No one here is falling for that. One lost sale is insignificant. The rest of us reasonable people will go right on driving this fantastic sim, the community will continue to grow, and we'll all laugh at the foolishness on the part of a few people who refuse to accept any change in an evolving racing sim.
There's the door. No one will miss you.