RAWR will do 50 posts for for $6

Attention: The owner of this service has not logged into SEOClerks for more than 15 days. It is highly recommend that you contact them before ordering or this service. Last Login: 478 days ago

I can post in any type of forum and I can follow any forum instructions you like.

I can, for example, post on your forum and increase your post count, increase activity, etc.

Or, I can post on hundreds of other forums and include your signature link on them all for SEO. I can set custom avatars, album pictures, username, etc.