As someone else noted, it was Quidam. But to answer the 2nd part of your question, Quidam never offered up any “hard” predictions that I can remember. I believe that’s what frustrated many at FR. They wanted Quidam to prove his/her bona fides with a solid unequivocal piece of verifiable insider info. But instead, his/her postings were full of more vague tidbits such as “jaws were dropping” as details of Clinton-Lewinsky were divulged.
Quidam’s posts all very much had the WHI flavor: they seemed to embellish upon suspicions people already had or tidbits of media news. Anyway, someone with a better memory than mine may recall a very concrete prediction from Quidam that either was shown to be true or not true. My takeaway from his posts was that impeachment and conviction was unavoidable given what had been divulged. Clinton ultimately was impeached but not convicted. Does that make Quidam the real deal or a fraud? Beats me.
Great analysis. You summed it up well. Real deal or fraud, he was certainly intriguing!