Just out of curiosity, anybody tried a clean reinstall?

I just find it curious that so many people exeperiance systemic CTDs, but (a) they seem to be caused by all sorts of different things and (b) many people experiance few if any CTDs. While it may be that CA is not testing things as they should, Iit also seems that whatever common denomiator exists is not obvious, which is why I wonder if some crashes might be caused by corrupted game files somwhere?