Hi Andy,
Thanks for the comment. Do you have any resources that indicate that Bing is offset here or that the island has changed?
https://overpass-api.de/achavi/?changeset=47895813
I believe that the island now better reflects reality due to my edits and that these changes improve the map incrementally.
Thanks again,
Kate

My apologies for these edits in Ashgabat. If I edit in the city again I will use that imagery and consult with you before doing anything. Please point me to anything in particular that I can fix (using the word properly this time, with the newer imagery).

You are right, I should not have moved the nodes making up that island. It is simply not visible in Bing or Mapbox. Please observe that I made these edits 6 days ago, and since then I have avoided making similar edits when no imagery is available. I certainly won’t any more. I am finding these jagged islands through a MapRoulette challenge, and I wanted to improve each island as much as possible. I see now that these good intentions can introduce errors to OSM.