For info - "highway=grass" hasn't exactly troubled the scorers at taginfo:
https://taginfo.openstreetmap.org/search?q=highway%3Dgrass . It's only used in this one location.

Hello,
Please don't add test data to the live OpenStreetMap Server. If you want a test server, perhaps http://api06.dev.openstreetmap.org/ would work for you?
Best Regards,
Andy

Hello poschon,
What is the point of the "information=add" data that you have added to every node here? Were these tags discussed anywhere before the import took place?
Best Regards,
See also the very negative comments about this import at https://lists.openstreetmap.org/pipermail/talk-it/2017-March/thread.html#57524
Andy

Hello,
Was this import discussed anywhere? The tagging (e.g. "information=a" looks very wrong.
Best Regards,
Andy

@dieterdreist did you raise this anywhere else (one of the mailing lists, the DWG, etc.)?

Hello poschon,
What is the point of the "information=add" data that you have added to every node here? What was the source of the import? Was it discussed anywhere?
Best Regards,
Andy

Hello Guppie35,

Your changeset comments are all either "no comment" or as here "just wright". Neither of those really explains what you're trying to do and what the source was. Please do take the time to explain your changes - OpenStreetMap is a collaborative project - we have to work together to create the best map.

Best Regards,
Andy Townsend, on behalf of OSM's Data Working Group.

By a margin of 31k to 60, yes :)

Certainly the change here has broken all the renderers that I'm aware of - relation/7491197#map=19/51.35138/-2.09942 is completely confused, and https://map.atownsend.org.uk/maps/map/map.html#zoom=20&lat=51.3513518&lon=-2.099315 doesn't see the pub at all!

Hi zerpou,
Was this import discussed anywhere (as per the Import Guidelines osm.wiki/Import/Guidelines )?
Best Regards,
Andy

Thanks for letting me know. It is (or was when I was last there) genuinely two adjacent car washes. I'll fix the tag.

Also,
What evidence do you have for the name of way/16290716/history ? I live just down the road from there and have driven around it many times. Where is it signed?
Best Regards,
Andy

Hello,
Where did you get the name "Pinxton Interchange" for way/118554994 here?
Best Regards,
Andy

Here a "nonsense" tag is useful, because it says that "someone tagged something incorrectly. Leaving that visible means that this and their other contributions will be looked at more closely.You don't know what the mapper wanted to record here, or actually you guessed wrong - in this case it's pretty obviously "source"; they typed "su" for "survey" and got "surface" - the changeset comment is "upravena jamka 4 source survey a bing".
Changing to something that "might be correct" actually degrades the quality of OSM data. Don't do it.

Did you actually ask them what they meant?

I've reverted this. Please ask the mapper what "pa" was a misspelling of in each case rather than just removing data from OSM.

Here you've removed the only useful information that was mapped. Don't do that.

The mapper presumably meant "source=bing" rather than "surface=ground" here. Please engage brain when fixing tags!

Hello Harinder Burkhart,
What is the source for the population figure here?
Best Regards,
Andy

Hello,
Can you explain what change you were trying to make here?
Best Regards,
Andy