This is a fairly ridiculous argument. Obviously you can delete part of a post, and can call it editing.
Much more concerning is that a Moderator who has a personal beef with a poster is once again using his "power" to edit that person's posts.
What we were told were "rules", and even became "laws", are now apparently just "guidelines". The irony of this flexibility is that it is being used to justify censorship that is not supported by any rules or guidelines.