You're not making too many threads or trying to control the forum (how would someone even 'control the forum?' That's what the mods do!)
If anything, I'd say you're one of the driving forces behind keeping the forums relevant. I know sometimes it feels like a thread I've made is unneeded, but I tell myself it's important to keep a dialog going. That way, when the really good threads do come along, there's people around to have that discussion. You contribute to that greatly, so don't let it get you down if you feel like you're adding too many threads.
Just as the spices must flow, so must the threads- and you're the... the... ok, truth be told I've never seen or read Dune. Who makes the spices flow? You're that guy.