A toilet that is installed improperly and is on unlevell ground and wobbles or if the screws get even a little loose and the toilet wobbles every time you sit down, then it will end up with the leaky wax seal.

I agree this is not really “willy nilly”, There is a clear sign of something wrong with the wobble. But a lot of people just aren’t taught this stuff throughout their lives so they don’t know that that’s a problem. So then you end up with people sitting on a wobbly toilet for years and then the wax seal moves and starts to leak.

Uncaulked is the way to go. If you do maintenance and keep everything around it clean. At least where I’m currently living in the U.S. that seems to be the standard. I have seen other countries where the toilet and shower are all together and they just shower and spray down next to the toilet. I don’t know about caulking there.

I have also seen the caulk around that leave the back open as well. That probably also works. Check code is most important, but I personally prefer no caulk look

I really really hope this is the case. The thing that probably drives me nuts the most right now is rebooting and having to reorganize windows across two monitors and six desktops.