I'm not commenting on your flipping here or otherwise, but you can't speak for your friend. There are all kinds of things that they may or may not do with it. It's something a lot of members are sensitive about, as people have taken advantage of raffles and sales in which sellers expressed an interest to keep items within the community. One guy who got caught entering and winning several raffles for the same games justified it by saying that the doubles were going to friends who are not members here.
I'm not worked up about Lords of Thunder not landing in the hands of an active forum member who would get a lot of use from it. I'm just glad that CPTRAVE got some of the money he needed fast.
If you truly do lack common sense, it should still be obvious why attempting to profit from flipping a homebrew game, that you never even bothered to try playing, is frowned upon. Even if you lack human emotions and empathy, you should have learned enough from reading posts here to anticipate the reactions of the normals, instead of justifying any actions by the fact that the only consequence is social.