Girls are more emotional and rely more on intuition, in trading this is unacceptable, they do not belong here.
That is the kind of mentality that is really harmful. The same applies for CS/tech scene and gaming too. Not welcoming interested people is very toxic, their gender shouldn't even matter.
That is really sexist and one of the many reasons I imagine they would prefer to be anonymous.
You'd think the crypto scene of all places would value anonymity and welcome everyone with open arms.