Gambling sites probably do have it in their user agreements.
Further, "insider trading" in prediction markets is probably fundamentally illegal under existing commodities fraud laws in the US (I am not a lawyer,) but there's probably nobody actively policing it, and probably no precedent in how to prosecute the cases.
Further, "insider trading" in prediction markets is probably fundamentally illegal under existing commodities fraud laws in the US (I am not a lawyer,) but there's probably nobody actively policing it, and probably no precedent in how to prosecute the cases.