As handy as GEDCOM uploads may be, the concern you raise is one more reason to avoid using them. But this is meant neither as an admonishment nor a recrimination.
Certainly the privacy issue is important. However, the concept of a totally public, totally available, totally free source for the genealogy of the entire human race is a pretty awesome and worthwhile goal - the very driving force behind why and how the WikiTree exists. In fact, limiting information beyond what is necessary to avoid identity theft, even for living adults, effectively blocks the fluid availability of the very connections that the WikiTree project hopes to promote. Thus what you propose is counterproductive to the project's very existence.
Your situation seems largely the result of actions that are cautioned against on the WikiTree site. The case in point here is this:
Reading the specific upload instructions for a GedCom on WikiTree, and/or reading the Honor Code all members are reminded to abide by would likely have spared you this difficulty.
Just my opinion as a fellow contributor - I do not speak for the Team that has founded, built and continues to operate this site.