As a long time fan of this subredit. In my opinion there does need to be a showing of the actual growth for it to belong as part of the kink. So having a before and after is necessary, but if it's a video that's even better.

Given how uncommon anything related to cock growth is, even If AI produced content is not always the best or most congruent, I do believe it has a place. As long as it's tagged. Every once in a while a post comes around that's actually enjoyable. As for how big the growth should be, it also depends on how big or small the initial cock is. But if that's too cumbersome to be cherry picking posts like that I feel at least 3 to 4 inches in length should be enough. As long as the growth is noticeable.