I guess so.
If I ever ran a forum, everyone would be welcome, even people who'd banned me from their forums. Of course some of them would fight like cats and dogs, because they always do, but I'd just let them get on with it. If it got too lairy, though, I'd arrange for the parties involved to have a stand-up fight outside the nearest Wetherspoons. Handbags would of course be provided so they could observe social distancing whilst scrapping.