

I don’t know, but I do know copyright and patent are two different kinds of protection, so it might be useful to look into how you think the shape would be protected.
Copyright would be for a creative work, and the enforcement by the right holder is allowed to be loose in selectively pursuing violators without losing protections.
Patent is for useful inventions or designs rather than expressive works. Skimming the Theodore G Brown soap, it seems much more involved than a simple shape and I can see why it was able to be patented.
Who is “they”?
Users clawing at each other over anything, and mods power tripping has been an Internet trope since the BBS forum days in the 1990s, at least. Lemmy, or at least LW seems to have a lower than median amount although imperfect. Lemmy as a platform has the advantage that anyone willing to undertake it can spin up their own instance, preventing a 100% stranglehold on mod/admin powers.