[qume]

His or her language wasnt great, but they made a very specific, falsifiable claim.

A confidence trickster or con artist is a very specific type of endeavor and it should absolutely be ruled out that this isn't what's going on here.

Personally im on the fence but it is most certainly possible that this is the truth here and discourse on this should be encouraged.

Great claims (as we have here) require great evidence (not supplied) and one possible explanation is that the founder is using his or her genuine credentials in a confidence trickster way.

Its a fine line but the core of this discussion is in fact about the legitimacy of this individual presenting as an expert, so you may want to ease off in this case regarding your interpretation of this being a 'personal attack'.

[dang]

It's perfectly possible to raise relevant concerns without being uncivil. Better, in fact, because then one isn't discrediting them with bad behavior.