Professional Gamblers
These are gamblers who make their living out of gambling. Professional ones aren't addicted and they have the tolerance, patience,self control with which they make decisions whether to continue or take a break.
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Personality Gamblers
This is the worst among the different types, because the aim is to make money. Important thing, they never think of anything. They do cheats, lies, do all illegal things to win in the gambling. They wish to be on the top.
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I don’t see a big difference between these two categories (we’re not talking about explicit crime?) Could you explain with examples what is so bad about gamblers who want to be on top and their goal is money? In my opinion, these are quite reasonable desires. And I must point out that people who move forward no matter what often make discoveries and change the industry in which they put their efforts. They are very different from the non-passionate majority.
The big difference between these two type of gamblers is about how the gamblers deal with it. Professional gamblers can control themselves while gambling, they know when the best time to start and to stop while Personality gamblers are just like hardcore addicted gamblers who will do anything in order to gamble.