So, can you find more content on private trackers, then?
Oh, yes. Between PassThePopcorn and BroadcasTheNet, I've never not found a movie or show I was looking for. It's not always a guarantee, especially for more niche movies/shows, but those two have never let me down.
For everything else, I usually use more general purpose trackers like TorrentLeech or AlphaRatio.
Agreed. Even for channels that aren't tech-related, if I have a quick question, I typically get a faster, more in-depth response than forums/Reddit/whatever. They may not always be the correct answer, but they usually point me in the right direction. Anyone still hanging around on IRC tends to have good troubleshooting instincts.