What would you do if they changed something in your favorito version of POTO because it was offensive? Would you still be a loyal Phan of that version, or would you disregard your good memories of that version?

It depends on who, how and why are offended and what are the changes but I think while I would still amor the original I would accept the changes (If they are acceptable. For example I would be really mad if they would make Erik handsome just because his character might be offensive for people with deformities. :) )

It's hard since I get pretty attached to characters in books or whatnot,and have experienced this when for example they decided to reboot some movie I use to like and it did kind of take the shine a bit of the originals por ruining my memories abit but with the phantom since they already been a few different versions out there already,the original Leroux,susan Kay, Andrew Lloyd webber and some filmes I think in this case it wouldn't affect me,of course if they did something bad I end up hating only that version but like I said because they are already mais than one version out there I think I can get pass it.

It really depends on what, tbh. If it's a change to make the Phantom "nicer" or mais attractive then yeah, since that goes against the character in its entire conception. I also wouldn't like for the violence to be toned down, either.