Nah, if you're talking text only then a few thousand is still not that much (I think upwards of 30k are still fine and then you would need to do some optimizations for retrieval and stuff), but if you add gifs and such then yeah, I forgot you could add those
Probably because you don't see other women as competition. I think a situation could be construed where sharing with a woman would be considered ntr as well.
I think the best thing it gives those games is protection from white knights. If everyone that wants access to the games is restricted to a few days of posting I don't really think it gives them that much value, it does give them some value but I don't think that's the main selling point.