I'm somewhat of a flipper (work at a dealership/restoration shop), and I do that. I usually tell people over the phone that I'm buying the car to re-sell, and if they don't want to sell to me for that reason, no problem.
I also treat people with respect, show up in person, don't haggle over the price, and either pay cash or do a wire transfer while the seller waits. Lots of buyers - flippers, enthusiasts, rich folks, poor folks - don't do any of those things. Those are the people you should tell to kick rocks.
I'm also an enthusiast with a very limited budget and I own some cars that would make much more financial sense to sell - but I love this hobby and I love the cars. Most of the disposable income I make (some of it from flipping parts) goes right back into other enthusiasts pockets.
Blabbing about myself - but this conversation keeps coming up and everybody is painted with the same brush (not that I take offense - I get it). What does it matter what happens to the goods if you as a seller set a price, and get paid your price haggle-free by somebody that knows what it is that they're buying?
A better way to live and spark a market adjustment:
Don't buy cars/parts/etc from flippers.
