Ok fine, PR speak deactivated to hopefully get the point across better
The massively condensed answer to "why are these changes being implemented?" is "so people, including moderators, can tell who tf people are."
Take a look at BlackYps screenshot, I have absolutely no idea who any of those people are. I assume "TheWheelie" is Farms, Sladow is one of them... and that's it.
What we mean when we say there has been little argument against this idea is most of the posts just say "lmao mods power tripping again" or something to that effect. Okay? What are we supposed to do with that? That doesn't tell us any useful information.
This post? Fantastic. Clearly addresses each of our concerns, points out problems our solution has, and describes where our communication has failed. I'll write out a better reply to this specific post when I have time.
Anyway, to reference our reply post
The position of the moderation team is that the primary use of usernames is to tell users apart.
A lot of the arguments against this policy have boiled down to "I want to change my username more than every 6 months because it's funny." And then we reply "we might even agree that it's funny but it causes all these issues". "Nuh uh!"
To paraphrase TheWheelieNoob (because rather appropriately, I don't know who that is):
Understanding the motivation [against] this update has been challenging
Why do you need to rename so often? Imagine you had a coworker and every week they went by a different name. Do you seriously not understand how that would be problematic and bother people?