There's a difference between having a string of "Don't be an idiot" text in a user policy, and actively asking every visitor to one's journal to click a big red button if they see something out of line in the journal they're reading.

A lot of this perception is entirely subjective. I'm sure I'd feel differently if it were always there, while it feels like an affront to have it appear after many years of use. Really, this button is the biggest and most unavoidable reminder that this space does not belong to me. There is a camel with a broken back here.