[Tagging] junction=yes as a polygon. Who uses them?

[Dave F]

Hi
Following a discussion on OSM-Carto, I'm curious what software uses 
junction=yes as a polygon.

https://wiki.openstreetmap.org/wiki/Tag:junction%3Dyes#How_to_use_on_an_area

A couple of examples:
https://www.openstreetmap.org/relation/5492033
https://www.openstreetmap.org/way/218106249

They're not exactly prevalent. Do routers make use of them? Even fewer 
contain a name tag, so it's not to display that.

I'm intrigued to know.

Cheers
DaveF