I think that if post counts are removed, many people will post 'useless or filler' info. Some of us may be aware (or care) about a high post count; and, will reconsider posting something that may not be relevant. ie check one of the Benjamin Do threads in Community for example.
I like seeing how many post someone has. Many times it will help me to decide on the validity of what's been posted. Arguments against of course.
I know that some old timers here have a low post count. If I recognize the name, I can factor it into my thoughts on the issue at hand. Again, I can you can make arguments against this.
The post count sends a subliminal message to some. I know Omni posters have higher posts counts; and that's the way it is.
I say 'don't count' Omni numbers in the post count.
Dan