That's what I thought but the words "going upstream" aren't sitting right with me, probably because he doesn't explain how. He doesn't say anything about actually using any said practices, he clearly talks about just being on the site and sharing advice between each other... not actually using it. He points out that whitehat webmasters don't typically hang out in those places.
'You're in for a long summer if you spend time on a blackhat site exchanging ideas'. That was his wording, he says nothing about actually using blackhat tactics. He does clearly say they are working on ways to deny blackhat webmasters the ability to have links affect serps by 'going upstream'. To me that sounds a lot like profiling, don't you think?