> And I did it.

Where was this?  I don't remember seeing a message about this change here.

> But if app lists shop=* catchall rather than using specific tag values then contacting them is very unlikely to be useful.

Indeed - but I don't think that anyone is suggesting that?

To be clear, until https://github.com/SomeoneElseOSM/SomeoneElse-style/commit/73f06e837d4792a4d9da939cb0e661472e595772 that repository was listed as an explicit consumer of "shop=guns" (not just "shop=*").  
