I guess I’m not missing out on a lot, am I?
Nothing more than a few bucks in BTC every week that could go towards the holdings.

I don't see anything wrong in taking part in discussions, and being able to grow your BTC stash by doing so, whether it's done only in one forum or more, after all, more opportunities = more BTC being collected. Signature campaigns aren't full-time jobs, anyway.

Same good faces in BTT are the ones I see in Altcoinstalks. I also engage with them more and it seems Altcoinstalks draw us closer than BTT. This is because BTT is large, I could choose to write only in a few boards and I might likely not see your username for months. But this is unlikely Altcoinstalks that feels like a smaller community where you see all the users almost everyday in the few active boards.
One important thing to note is that even in Altcoinstalks, signature campaigns still pay in BTC.