I can NOT emphasize this enough. There seems to be a terrible bias among some editors that some sort of random speculative 'I heard it somewhere' pseudo information is to be tagged with a 'needs a cite' tag. Wrong. It should be removed, aggressively, unless it can be sourced. This is true of all information, but it is particularly true of negative information about living persons.
–Jimmy Wales 
- Jimmy Wales (2006-05-16). ""Zero information is preferred to misleading or false information"". WikiEN-l electronic mailing list archive. Retrieved 2006-06-11.