Just a little tip / advice I'd like to give, because I've noticed corrections on some of the fictive profiles I keep an eye on.
When you see a profile which has a category like "[[Category: <name of falsificator> Fraud]]" or "[[Category: <name of Falsificator> Fabrications]]" and is Uncertain, Disproven or Questionable, there is not really much point in trying to fix errors on it. It's not a bad thing - but really, it would be more productive to work on a valid profile.
Of course, in the case of a Parents, Marriage, Date.... challenge, DON'T touch profiles marked as disproven, or questionable and part of a fraud category. The errors should not be fixed for these profiles, there are part of what make the profiles stand out as "wrong" and we don't want to lend them credibility by making the data on them appear valid.
And if you find sources that confirm the profile represents someone who really existed and can be restored, please post your findings on G2G!