It's obvious that sceptics are busily re-editing articles in their favour, and a reader has kindly sent me a link that shows how they do this. It's a project calledGuerrilla Skepticism on Wikipedia, run by Susan Gerbic, who recruits sceptics to give pages a makeover, both those that publicise their own side (ie debunkers, key sceptic figures, etc) and also the opposition's (celebrity psychics, paranormal claimants, etc).
One looks up something in an encyclopedia in order to find an unbiased account of something. Both sides of a disputed should be given adequate space, but to edit in order to slant matters on way or another is intellectually dishonest. The bane of intellectual life is wedded some people are to their conclusions. Best to regard them as much as one can as provisional.