Not that I necessarily disagree, but there isn't a screening process. Who should be in charge of fact checking to make sure the right person is doxed, and that the information is accurate? If you do post inaccurate info, I suppose you lose credibility? Thats something of a consequence.
And there the problem is:
1. The person posting the said dox is fully responsible.
2. A throw away account doesn't suffer much consequence. Somewhere around 0%.