"Rob Singer" is a gambling fraud and huckster whose sordid "career" goes back about three decades. He took advantage of the video poker boom by writing a book, "The Undeniable Truth About Video Poker," which was in actuality chock-full of very deniable untruths. His premise/shtick was that paytables didn't matter; strategy didn't matter; all you had to do was use the Martingale system and keep doubling your bets until you won. He claimed to have won "100% of the time" using this approach.
He really blossomed (or maybe 'festered") when the interblab started having all these video poker and other gambling forums. He was present in EVERY forum, making his asinine claims and pushing his book. He was openly hostile to anyone who challenged the veracity of his claims. He got tossed from almost every board/site/forum eventually, but always came back under some other name.
His activity seems to have waned in recent years, probably because gamblers are a little bit better educated, especially re video poker. So I'm not surprised to hear that he's branched out. You know, just from common sense and simple math, that his claims to be a big winner are pure moonshine; bullshit; nonsense; lies; horsecrap; vintage Rob Singer.
He never mentioned this on the LVA forums, as far as I recall. He may have CLAIMED to have whomped the sports books after the fact, but he never posted anything like "these are my five picks for this week" so we could see if the expertise he claimed to possess was real.
Rob Singer is ten pounds of shit stuffed into an eight-pound bag: a consummate fraud and huckster who has worked his passage through life by, not to put too fine a point on it, lying through his teeth. You also have to ask yourself: if I was beating the sports books at a 68% clip, wouldn't the absolute last thing I would do be to publicize it?