I don't know the actual statistics (does it exist even?), all I say is making decisions on the basis of "discussions" as if it were derogatory information makes no sense. It doesn't also make sense to treat accusations as if they were a proof of wrongdoing - though a lawsuit slightly raises the probability of there being some wrongdoing, as we can assume at least some potential claimants would be deterred by the fact that their accusations are false - but we should not overestimate it, there are a lot of false accusations flying around, and even more accusations that aren't provably false but also not proven true - e.g. when a person has no success working for the company and claims it was because of discrimination of one sort or another. The person may genuinely feel that way - but it does not mean necessarily that's actually what happened.