I agree with aharvey, while some of these aren't perfect, some of the deleted ones are reasonably accurate.

Deleting the ones that are somewhat off isn't the right answer, either correct them, put a fixme tag on the problematic ones, leave a note, or see if someone in the community can help with fixing them.

They're still houses in those locations, and building outlines that need a bit of a touch up are better than not having them there at all.
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            Published using OSMCha: https://osmcha.org/changesets/162804346
            