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« on: Saturday 20 March 21 16:27 GMT (UK) »
Am deeply critical of Ancestry - I use them because of their family tree graphics, which are good, & the access the give to census returns & so forth.
But my especial interest is in 3rd-5th great grandparents, this is when the dna matching starts fading away, in some instances down to '0'.
In this instance Ancestry is an absolute horror - I have a cousin match of 20.2cM on Gedmatch which Ancestry whittles down to 10cM! This means that many of my genuine dna matches never feature on Ancestry, never come up on Ancestry dna-searches, which is appalling.
With Gedmatch you are given a lot of control over how you search, you can raise & lower thresholds, for example. Ancestry, on the other hand, treats us like children - we are not allowed to vary anything, we are not allowed to see lower matching, we are only permitted to see what Ancestry wants us to see.
Members can still compare matches - a good feature - but it is still subject to the whittling down of dna matching, by over 50% in my case - that is just ridiculous, it's like being given a history book with over half the pages missing I feel.
But that's private companies - in general, a law unto themselves :-|