Why do people not like MOO?

I don't hate MOO, but I am careful with it and prefer lots that have been play tested and don't use MOO much. When I initially build something I never use MOO or alt and I limit resizing. I don't want to loose all of my lots should something happen to the MOO cheat so I keep a vanilla copy of everything I build for that reason. I have downloaded lots in the past that have used MOO and not said so in the description and have not been able to use them due to routing issues. If I do download a lot with MOO (and I have a few) I look for the MOO hashtag or the creator states that they have used MOO and that the lot has been play tested. The other problem with lots using a lot of MOO is with over filling the lot with items and having lag due to the huge amount of items layered on the lot. It's more likely with a lot that uses MOO a lot. (Although I did that once on a non MOO lot and got lag so I am now more careful not to stuff too much stuff on a lot.) I don't think anyone is wrong to use MOO and I see many beautiful and creative lots built using it, but I prefer to be cautious with lots I keep in my library and use in most of my saves.