@Federico for future reference, this, aviation.stackexchange.com/posts/75271/revisions, is an example were an invalidation would work right? also is it preferable to be here or via a flag or whichever?
@Federico copy, I forgot, hence the for future reference part :D only realized after editing it, basically wanted to check if it's via a flag or here, maybe if I talk about it too much here, the chat would leak into the main page :'D