Here is a general comment about how the OnWheels edits are currently processed.
Users who participate to team-buildings now use the teambuildingonwheels user account. As far as I can see, changesets issue the “created_by=OnWheels 0.1” text string. In general, a bunch of tags related to accessibility for people in wheelchairs are added, namely changing_table, changing_table:adult, entrance:step_count, entrance:width, wheelchair:turning_circle.
The good thing: recent edits from this account are not destructive anymore. They merely add “their” tags but will now preserve all the existing tags. 
They can either edit an existing node (Adding accessibility tags to existing node) or create a new node (Creating new node with accessibility information). The template for new nodes still has some problems, e.g it adds “created_by=On Wheels 42” on the node itself (it shouldn’t). Some presets seem to use incorrect tags.
In addition, Robin On Wheels seems to review all the edits afterwards (using iD) for some general cleanup. Again, this is good, thanks, Robin. 
Once in a while there are surprises.
For instance, today a new account popped up and uploaded changes which also have “created_by=OnWheels 0.1” in the changeset tags but which produces nodes with incorrect values. Not only does the user add node for a restaurant where a way/area already exists, but it also adds new nodes when a node exists. The most surprising thing is that this node had been edited a few days ago by another OnWheels user. This is very puzzling, it would be useful to check with the users why they feel they must add missing places. Either their app does not show existing OSM data properly, or some users are using an outdated version of the app, or users lack proper training.