You will rarely find a trader who is profitable long term, if they are profitable long term then their profits arent as high as those traders which are high up on the charts.

What they basically do is have a good week or good month and it hooks people to copy them so they can get some commission back. But eventually what happens is, they will take one trade which will go against them too far and their entire account will get liquidated.

Most trade with small amounts anyways, so if they blow up their account they dont care but the people who copy them will face huge losses. I would avoid copy trading at all costs.