Well said. Just because one user doesn't like member X, doesn't mean that member X doesn't exist on the forum. They have every right to see all of the postings and stuff on the site, just like every other member in good standing here.
If Member X does so much bad stuff that they should no longer have that right, they'd have been issued warning points and real points and be banned by staff. So unless staff decides that member X is not welcome here, they get to be a site user, just like all the rest of us. You can't block out your posts just because you don't like them. I don't actually know of any forums that do that, actually, although I'm not a member of tons of sites.