As a forum admin in another site, I can give you some little advices.

Arange events to gather some audiance(some people suggested contest before me, Maybe a meeting in real world could be helpful, we can meet in GDC or another special event for game developers)

Make noise! Make games! publish the site and the games!
People don't know that you can make modern games with pascal.

More discussions!
not just technical stuff. Some thinking together, some get to know eachother.
discussions about game design, about the world industry.
I guess for some of the people here it's not just an hobby. they can give tips for beginers.


But all of those discussions - the admins need to open, atleast at the begining.
Currently the forums are too much technical. and thats why I think people don't feel comfortable to write about new projects or ideas.



Also, google. as other people told before, add the site to google index.
And make quick link for the list of games in pascal - it can be very usefull.