As I understand it, any Online tree is not a valid source which would include Family Search Trees.
Again, I believe Gedcompare has added to my ancestor's relatives with the only source, a family search online tree. (Could very well be correct and not a mess like another time).
I believe it is too easy to add an online tree as a source.
As adding sources is free form it is extremely difficult to stop this happening.
If I was a new member, I would think if I am not stopped or reminded when entering a source, therefore it MUST BE OK!
My suggestion is
1. Stop this if at all possible via technical means using keywords to look out for.
2. Ensure a reminder is VERY VISIBLE when sources are added that online sources are not to be used as a source, with a link to the help page.
I believe this particular entry came in via Gedcompare - I am definitely not a fan of the method. I strongly believe that we should enter :
One profile at a time and give each individual the profiles they represent, the respect and attention each and every one deserves.
Even though I have THOUSANDS of individuals yet to add from my home database.