Hello, Anonymous36863.

Your changeset (173625367) reports that you used "Esri World Imagery (Clarity) Beta" as the imagery.

When looking at this imagery, we see nothing special matching the shape of the polygon you added, this is in the middle of water.  The nearest land is about 11 km north of here or 14 km south of here.

Greenland Orthophoto, presumably taken during the winter season, shows ice cap everywhere.  Again, nothing noteworthy in this area.

Bing aerial imagery is almost identical to Esri (see above).  Mapbox and Imagico do not provide any imagery for this part of the globe.

Honestly… I don’t know what imagery shows something special here.  Could you tell us more?

Apologies for calling this changeset vandalism.  I might say that it looks fairly misguided.  Your edit had been flagged as potentially incorrect: a rectangular area in the middle of the sea tagged as "natural=water" looks quite absurd.