[gdrulia]

Pinned tabs definitely should be excluded from throttling. Pinning tab for me usually means that I want to keep track of something, which usually is my email, chat client, etc. I don't want to be notified about new email on my phone before I get that notification on PC, which is already happening too often. That's just unnecessary hassle.

Though I'm not sure how popular this feature is and I would vote for other ways to turn throttling off, especially for those which prompt user about it.