An interesting suggestion
singlemalt
In the past FT has had some posters start a new handle, post from a proxy server or wherever, so they can't be tracked, post a few controversial threads at 2am or whatever, that cause a lot of angst and heat before they are eventually deleted by Mods.
Sometimes that is fast, and sometimes it can take a while. Anyway, it is a valid suggestion. If your suggestion were implemented this would not be possible.
I might raise it within Talkboard and see what other thoughts are, if others here think there is some merit in this suggestion.
Over to the readers.