The car park at way/234077523 is tagged with the name "Gala Bingo". It is right next to way/234077517 which changed its name from "Gala Bingo" to "Buzz Bingo" in changeset/72852964 - I suspect the car park needs its name updating but haven't surveyed this.

There is a leisure=water%20park here at node/2896517133 that I'm fairly sure does not exist

The electric vehicle charging point at node/9380611791 is named "7 Kw" which looks like it violates osm.wiki/Names#Name_is_the_name_only

This charging point would benefit from a survey to assess which tags best suit it.

The steps mapped as way/1383823918 end closer to the footpath at way/1423926408 than currently mapped. Another footpath extends from the top of the steps joining up with a new footpath near way/1331473015 which may no longer follow its currently mapped route. The surface of the new footpath is considerably improved.

This would benefit from a survey to assess exactly what currently exists.

There are two leisure centres mapped here at way/316892937 and way/316892935 for the same leisure centre, violating osm.wiki/One_feature,_one_OSM_element

I suspect "Saddleworth Alpacas" mapped here as way/317114639 no longer exists.

I suspect the "Greenfield Shepherd Huts" mapped here at way/1055089321 no longer exists

There's a cycle path mapped here as way/669688779 that goes straight through a more recently added embankment by Mauls at way/1098380785 - it seems unlikely that this is correct.

"A Month of Sundaes" mapped at way/337487455 has no FHRS record in https://ratings.food.gov.uk/api/open-data-files/FHRS411en-GB.xml and its Web site no longer works. I suspect it no longer exists.