Thanks SO Much for creating this tool.
I just uploaded a small (50-or-so person) GEDCOM. Predominant surname is JONES, so you can imagine: many possible dupes.
The GEDMatches bot seems to do a better job than current online search/match options, but still brings up possibilities that don't seem appropriate:
1. Same birth year, but different birth place (could understand if one of the birth places was blank, but in the cases I'm thinking of, they both had places in that field, and they weren't close at all. Different state, different country.
2. Same birth year, but different parents when both listed. Pretty much same as #1 but where the GEDCOM being uploaded has a set of parents listed, and the Matchbot suggestion has a completely different set of parents.
Of all the proposed matches-- 53, I think-- only a couple were really close enough to make me wonder. The bulk were clearly not matches.