How does that affect you in a negative way exactly besides "im on PS so i cant do it".

Mods are a grey area, they dont care as long as you dont harm others, officially they will obviously say to not use them ofc.

Personally i dont even go through the effort to report ppl ledge sitting cause it doesnt affect my gameplay at all~

Most importantly, Yoshi P doesnt want to get in the way of ur privacy and know what you have installed on ur computer, so hes against anti cheats.

PS: Ledge sitting should become an actual emote at this point, but alas.