Links to the place where you can read more about it (AJ) were stated above. You are obviously entitled to your own opinion, but - no offence intended - it's irrelevant because it's a fact that many of the teams competing for the top spots in several BG's have been the target of ddos attacks. There are multiple ways to acquire someone his / her IP. Skype has been one of them. I could host a transparent 1x1 pixel on a server of mine, and send you a forum PM. And I can basically see everyone who loaded that image, including their IP. And there are many other 'tricks' to get it.
Fact is; it has happened and it's still happening.
Also it's cheaper and much easier to obtain the 'means' to do it. It doesn't take a skilled hacker to do it.
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