Actually, now I think I know what my problem is...
It's not so much post count that bothers me...it's my own personal average posts per DAY that makes me worry.
You see, in order to make myself feel like a viable member whose opinion counts, I have to average at least 1.0 posts a day, for every day I've been on a forum. When I joined in January, I thought I'd have it made, because this was a forum with my own kind...my own people, so I'd have a LOT to talk about. But I've slacked off instead, so now I'm averaging a measly 0.9 p.p.d.
And that automatically makes me sub-par, inferior, and every other word that means 'expendable', in my own eyes.
*sighs* In a sea of old veterans and newbies with almost a thousand posts, I feel so much like a 'middle child'; ignored, alone, unimportant.

That's some OCD thing I think. I can be a little obsessive compulsive myself, but about other things.