No sorry, but Wikitree does NOT autopopulate family trees.
This means that many newbies, after they upload their Gedcoms, end up walking away from the gedcompare process because it turns out to be a bigger job that they had planned for.
So wikitree is littered with old Gedcom profiles that have no sources and no useful details that will allow a merge with someone else.
The only way to avoid this is to create and upload each and every profile manually or by hand - which is what I have done.