Honestly the way i interpet their anti modding stance is simple.They are control freaks that dont want ANYONE else to touch their precious porn game because their fragile sense of ego will crumble.Its a shit attempt at mainting control when,letting the community mod the game would make it even more popular/connect the communities etc etc.
Now if you really want to make the argument that shit like the hgg mod was huuuuuge bad rep for the game i would have to disagree since,thinking about it logically,if you are retarded enough to mistake a MOD of a game for the full game itself then the devs shouldnt care.I mean nobody on 4chan tried to make it look like their mod was the OG game or anything like that.They were actually quite vocal about it being BETTER than the original,not that it IS the original,so realistically they have no reason to NOT let the community mod the fuck out of their games other than,as i said,keeping their fragile sense of control intact.