Anyway the response to this is little complicated because the respondent is just taking out of millions of gamblers who are losing on a daily basis and one person stands out to be profiting. Yes if someone is profiting over the years in his gambling journey, it obviously means the person is applying some level of skill and not depending on luck.

But the point is out of how many people that are losing ? Can we now say gambling is profitable to generality of the people engaged in it. A long time consistent win is luck but skill, however we don't have to lose our focus that gambling is majorly based on luck.