Domanic: I wonder if these fraudulent tipsters are using your tip jar to verify that the account has not been closed, before using it to buy stuff from somebody else. If so, then it suffices to expose your tip jar only to people who have otherwise identified themselves.

I do not wish to take anything away from those who posted on their admiration for female pioneers in computing, nor from the admired pioneers themselves, but hasn't Ada herself been shown to have been a sort of spokesmodel for Charles Babbage, her published work ghostwritten? I seem to recall that something definitely traceable to her indicated a lack of basic algebra. If this is not right I would welcome correction. Perhaps Emilie du Châtelet or Mary Somerville would make a more durable standard-bearer.