Firstly, I don't see many people in the tech community voluntarily calling themselves hacker. It maybe referenced in manner of a self-deprecating humor, but I've never heard someone in the industry address the other as such.

Secondly, Most of the people in the industry are NOT stoners, at least in my anecdotal evidence, this article suggest that they are.

Finally, FBI is struggling to find good 'hackers' because people with skill find other employment opportunity more enticing? Maybe places that didn't see them as hackers and sidekicks?