Ok, not to sound like a total jackass, but that is the stupidest thing I've ever heard. When you say "to get more posts on the board", do you mean posts next to your name? I don't even think anyone looks at that. I could have 170+ BS posts. This is just hypothetical. I don't really have 170 BS posts.. maybe just 100.
Anyway.. Or do you mean on the actual board? Again, there's not really any point to that either. Who cares how many posts are on the boards? I don't.
So, in short. Don't double post intentionally. If you do "accidently" double post, please delete the post. If its a topic, tell an admin to delete it.
Thank you.
-mike