I think this harms transparency and attribution. So I think there needs to be a very strong use-case for this to be helpful I think. About B) people being able to speak more freely, I think there should be off-the-record channels available for this reason. But I don’t think it should be a large public stage, like the forums. I think having to stake your reputation to use the public stage is important to the health of that stage and the community as a whole.
Current off-the-record channels would be private messages on the forums, or direct messages on Discord.