Playing the devil's advocate here - isn't this a good thing for the Tor network? Almost anything that adds traffic to the Tor network will help the "legit" users further blend into the crowd.
If I were looking at things, I'd backtrace from sites of interest. If your computer connected to a broad number of websites, and sufficient numbers of fishy websites - and other computers did likewise - then yeah, the false positives would be too great. But just increasing traffic through the network doesn't necessarily do that, at least as far as I understand it.