(WARNING: choice of quests offered in SC is getting slightly overbroad for original intention of this topic; but here is my personal opinion anyway, since you mentioned it):
I generally agree, but “possible outdatedness” is a risk with many (if not all) things in OSM, not only opening_hours=*.
E.g. one might argue it is problematic mapping clothes shop or cafe either, when they quite often might be replaced tomorrow with a bookmaker or a pawnbroker.[1]
In my opinion, such Sisyphus’s destiny is what every OSM mapper must come to terms with sooner or later – if they want to keep their sanity (in fact, it is why StreetComplete not only asks about missing attributes, but also about ones which might be outdated).
EveryDoor app with its checkmark functionality is even more tailored for quickly verifying (and recording verification date!) whether data on the ground is still correct (so great choice to use at least once a month in your neighbourhood!)
So, my suggestion to perspective OSM mappers would be: update things even more often then you map new ones!
often worthless, maybe even misleading.
Well, they are periodically asked to be resuveyed, and StreetComplete does specifically tag when opening_hours were last verified with check_date:opening_hours (and check_date) tag (see e.g. here).
That information can in turn then be used by data consumers (like e.g. CoMaps navigation app) and displayed to the user to let them decide how trustworthy that information is (“changed two weeks ago? I’ll trust it! Last update 16 year ago? Uh… highly questionable if place still exist, much less that the working hours are the same, best if I look them up online first”). Here is an random example how it might be conveyed to the end-user:
Much better and more useful IMHO than G***Maps, at least in this little corner of EU (where things which went out of business half a decade ago are still being happily listed there).
at least over here those seem to taking over worryingly often! Sign of economy collapse, I’m told. But they are also often just replaced with something less sinister, or left vacant. ↩︎
