My weird idea: there should be a rating agency to assess the credibility of certain typers. For instance, "Mr x's typings are reliable / AAA+, whereas Mr y's typings are junk bond".
http://en.wikipedia.org/wiki/Credit_rating_agency
I can also recall the page rank algorithm, which can be used to assess the credibility of typings as well.
http://en.wikipedia.org/wiki/PageRank
Both ideas could be absolutely wrong, btw. For instance, the Innefable's typings could be 100% right, but as most users disagree with him, he does not have much credibility when it comes to typing. In a pagerank style assessment, controversial users would probably end up discredited. On the contrary, Ashton or Aestrivex typings are widely accepted by the Western Socionics Community.