I can see the amendments you made. I wish to know the reasons you made them.

So my original question remains unanswered.

What was the ref of the "one node section of Way: Frome Road (4411939)"?

Struggling to see where "duplicate section of highway." were. Please indicate the relevant refs.

It's a two-lane road with a dashed line. As far as I'm aware there's no rules disallowing it.

OSM is a do-ocricy. Contributors take responsibility & correct their own mistakes.

Hi
Welcome to OSM.

Please don't attach objects, in this instance a gate, to boundaries.
If possible, add the fence/wall etc & attach it to that.

Also, if you're amending objects in a small area it's preferable to perform the actions in one changeset, instead of one object per changeset.

Hi
Could you clarify your amendments.

Hi
Could you clarify the purpose of this relation?
relation/16159571

traffic_signals:direction tags aren't required on one-way streets

Hi
Was there a specific reason you deleted this way & removed its history?
https://osmlab.github.io/osm-deep-history/#/way/51293007

Hi
All UK railway stations are mapped as nodes, to allow central accurate location.
Railway=stations as an area are generally inaccurate. They overlap rail tracks which aren't publicly accessible. How far beyond the platforms should they be mapped?

it's beneficial to map areas as landuse=railway (OSM-Carto render it the same colour as railway=station polygons)

Hi
All UK railway stations are mapped as nodes, to allow central accurate location.
Railway=stations as an area are generally inaccurate. They overlap rail tracks which aren't publicly accessible. How far beyond the platforms should they be mapped?

it's beneficial to map areas as landuse=railway (OSM-Carto render it the same colour as railway=station polygons)

Please refrain from adding erroneous tags to PROWs

Hi
There's no requirement for highway tags on platforms as their sole purpose is for people to walk on them. Routers should be able to manage them without the tag.

way/150691065#map=18/56.70252/-3.73472

Which wiki page?
Routers can handle platforms in the same way they handle highway=pedestrian

Hi
There's no requirement for highway tags on platforms as their sole purpose is for people to walk on them. Routers should be able to manage them without the tag.

Hi
Probably best it you leave the reversal to me. I can do it in one go.

If you tell me what you're trying to achieve with Trans Euro Trail I may be able to help.

Thanks, but I'm still unclear at the purpose of your edit. it appears you tweaked the locations of two nodes on a couple of fileds slightly and move this tree 1/4 of a mile.
node/10259128754#map=19/51.34255/-2.34797

PS Welcome to OSM.

Hi
Could you clarify what "Pat of TET" means & what your amendments entail?

I was unable to replicate that action.
Could you readd them please.

Hi
Please refrain from removing the 'area' tag from railway=platform mapped as polygons. They're required to ensure it is rendered correctly with a fill. That it renders without it is a bug which is planned to be fixed in OSM-carto.