The reason we don't outright delete those kinds of topics, is because we wouldn't want to take away someone's right to say they're leaving, and furthermore we wouldn't want to make them feel any sort of validation if they try to claim we're censoring them and their accusations. Optimally, we would like for people to feel like if they're uncomfortable here, they can just say their goodbyes without writing out a entire letter about why they feel valid in trash-talking our group/members. If someone can just be mature enough to accept that they dislike the changes we're making, or that they're willing to put past their differences with individuals, and simply say "It's my time to leave, Goodbye", then we wouldn't see any threads like these.
The problem comes in, when they try to argue and throw out accusations or trash talk on individuals, while trying to leave. It's cowardly, for starters that someone would basically take their time to talk up a bunch of shit, and then leave and cower away from any retort. There have been many members of our group who have left that have been more than welcome to participate with us (Ethan, Karlhockey, Aelus, and many more I could list from the Aeternus group), even if they're just visiting or still participating with us unofficially, because none of these members saw fit to throw out accusations at Aryte or others on their way out.
None of us in this group have ever enjoyed seeing our members leave, we don't want them to leave, nor do we want to fight with them on their way out, but when they go out of their way to talk down on us as individuals or as a group, we as a community are going to defend ourselves and our members. That's just how it is.