It makes sense to do nothing and only add information that I agree with to my tree. Hopefully others will get my tree as a match and amend their own records if they agree.
As to DNA - Am I missing something? Surely it only confirms connections to the living?
Sorry but no, it does not necessarily confirm connections to the living, it can be used to solve mysteries such as an unknown parent of say a Great Great Grandmother.
It can be used to verify the Biological accuracy of tree branches up to and beyond ones 3xGGP’s.
It can be very useful where there is unknown parentage, even solve very recent unknowns.
You cannot rely on documentation by itself, even when you have multiple citations involved.
DNA is a tool, if you create a Family Tree without incorporating DNA it is a Genealogical Family Tree, if each branch is validated with DNA then the tree becomes a Biological Family Tree.
E.G.
My own DNA story
For 15 years I researched my family.
I had a family tree of 9000 family members.
In 2017 I took a DNA test, eventually I had a lot of matches with Irish heritage and another unconnected set of matches of Italian origin.
Unable to resolve the matches three of my Paternal Cousins each took a DNA test, the results showed that they are First Cousins to each other, but none of them share DNA with me, hence they are not biologically related to me.
My Paternal Nephew took a DNA test and the result shows that he is related to me but only as a Half Nephew.
I have a lot of DNA matches linked via my Mother so no problem in her lines.
The un-refutable conclusion being my Dad was not my Biological Father.
To shorten a long story, last year I found my potential Half Sister and once her DNA test results came back they proved her Father was also my Biological Father as she shares 1800cM of DNA with me.
There is ZERO documentary evidence of this only DNA, nor will there ever be any documents or accurate certificates, but unlike documentation, DNA at the level of shared centimorgans we are talking about does not lie.
My Birth Certificate does not list my Biological Father, it lists the man who brought me up, the man who was and will always be Dad.
So a Birth Certificate is just that a document that may or may not represent the truth.
I have two other GRO Certificates for other distant family members which have also shown to be in error thanks to DNA.
Hence you cannot rely on documentation alone if one wants an accurate family tree.
The downside of DNA being that it is quite a learning curve getting to grips with DNA and as I found to my emotional cost skeletons can be unearthed.
Good luck with your tree.