Not trying to gloat or anything, but look at my stats, and you can see that in my 6 or 7 years here I've created less than 30 threads.
We've told others like you that they don't have to constantly make threads. Replying to most threads is just fine, and once in awhile, if a great idea for a thread comes to you, make it.
Just don't:
1. Think you're on a roll and go on a thread-making spree
2. Bump it if it gets inactive for awhile
You should do fine.