Every article here is written by someone who has been barred from a baccarat table, which is a specific kind of qualification.
Leo Paul Marcel is an advantage player. He knows casino operations from the inside: how a floor is run, how a game is protected, what a supervisor is watching for and how long it takes. He specializes in exploitative poker, and his side-bet results at Ruby ended the way those results end when the count is right often enough — with a conversation and a walk to the door of two casinos.
That experience sets the standard this field guide holds itself to. A rule is stated as a named ruleset, not as folklore. A constructed example is labelled as constructed. An edge is described with the conditions it depends on, because an edge without its conditions is just a story that happened to end well.
He is not here to recommend a wager. The premise of the site is that the mechanism is the interesting part: the rules, the information, the expected value, the variance, and the costs that quietly decide whether any of it was worth doing. What a reader does with that is their own call.