Flags: Check if flags still exist

[danieldegroot2]

What feature would you like to see added?

Check if filters still exist (are maintained) and are working properly (not broken). Many, especially the old Mapbox ones (i.e. #231 ) might be gone. (though I am unable to effectively conclude this from solely doing a few queries of course.)

For example, check if Mapbox flags should be kept/added/merged/changed.

(though this might have already been done on initial move to osmus and noting they have explcit 'Mapbox' label)

Why would this be useful to you or other users?

Mapbox flags might

• duplicate existing flags (though might have different results)
• be outdated
• be redundant

Makes it easier to research before proposing new flags (though actual flag's contents are (intentionally) obscure)