The sidebar is now updated. I'm going to leave this post stickied for a few days just so everyone can hopefully get on the same page.
The new rules are not set in stone, but hopefully they will do a fairly good job at setting the tone for the community. Thank you again to everyone that contributed to the revision.
If you have suggestions for updates, additions, or deletions, please know that you can always send us modmail.
I would find it extremely difficult to argue that a comment posted under your own username could credibly "impersonate" a different username.
Depending on the username and how it is displayed it can be quite easy to fake activity if someone has either capital "i" or lower case L in a name since I and l look similar.
Other than the definition of "impersonate" also including acting like them. There is enough wiggle room that a bad faith actor could weaponize it against us.
Well I mean, that rule also includes the words "harass" and "psycho." It's always going to depend on precedent of enforcement. Just like real laws, I guess.