For example, a peacock's tail is a honest fitness signal -- it does take a lot of effort to maintain (in food and vulnerability) so it serves as a good signal for fitness.

Naming an existing place after a virtue you want to pretend to hold is an empty virtue signal.

Rezoning the city to reduce car traffic would be a honest virtue signal for the same virtue.

"Empty" is usually dropped from "empty virtue signaling", because why bother.

Alt-right association or origin don't make the phrase automatically invalid. You could even say pretending that it does is itself a virtue signaling in the derogatory sense.

And since I pointed out my own virtue signal, have I marginalized myself with abnormal behavior?

Not really. It was called Key Arena before because Key Bank funded it. It was good advertising for them. The buildings on college campuses are also named after their donors. It acknowledges who paid for it.

Names can also just be for fun, like the Seattle Space Needle. The Emerald City is also the official nickname for Seattle.

Climate Pledge Arena is about as fun as "eat your broccoli, it's good for you."