Hi,
An experienced forum poster here at your service :)
I actually like doing this, especially if the topic(s) is/are inspiring. I just finished a similar task of forum posting and was hired again on a monthly basis. All of my posts are carefully written and relevant, and it is very rarely that my posts get deleted, in spite of having a link in them :)
I charge $3 per post (because, you know there's a lot of clicking involved :)), and if this seems fair to you and fits your budget, I'm ready to start immediately.
You're welcome to check my reviews and should you have any questions, I'll be happy to answer.
Kindest regards.
Milan