Use of website tag containing utm_source=OSM

I’ve noticed that Central Apartment Group is putting UTM parameters in their website links that allow them to track traffic coming from OSM data sources. For example, Melbourne Knox Central contains

This isn’t a big issue, but I’m sure we don’t want other brands catching on and adding this to their links in OSM. It looks like most UTM parameters for other URLs have already been removed in other countries.

View all in Australia: overpass turbo

Well the website tag page on the wiki specifically says to remove them when adding, if they do re-add them then it’s probably worth commenting on the changesets to let them know, and past that it’s for the DWG. That kind of stuff doesn’t belong in OSM.