I would rather not have to have my terminal go down the route that the web did. Next thing you know, we'll be installing TTY adblockers to block fingerprinting using the terminal window size…

TBH, any advertising free spaces left in the world probably ought to be considered sacred, as they are getting fewer and fewer every day.

They may not be intrinsically more sacred than anything else, but ads in general are still something to avoid. The difference in reaction when adding a new ad to the web vs the CLI is analogous to dumping trash in an abandoned building vs in the middle of the forest. They're both bad, but the CLI/forest feels worse because it's mostly untouched, whereas the web is already thoroughly infested with ads.

Your comment got me thinking: If anything, most terminals have functioned as dilute advertisements for the Free Software Foundation for decades now. Especially via license-mandated attribution notices.