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Well, ""card-cheat"" is a characterization, while ""pro gambler"" is not; it's a term stating a person's line of work. There is no moral judgement in describing someone as a pro gambler. I would think calling someone in Wikipedia a ""crook"" or a ""cheat"" should only be acceptable if that someone has been convicted in a court of law, e.g. ""G. Gordon Liddy is a convicted felon"". (But O. J. Simpson is not a murderer.) I'll look this up in WP.  -  "