Wow, yes, that's quite a niche!
Okay, so I have a quick suggestion first. Take your forum section count down to maybe 5 (or less). Have an intro forum, a general chat forum, and then maybe 2 or 3 specific forums that cover a range of or time period (whatever works for this niche - not totally sure). And then, once certain kinds of posts start overtaking the sections (ie. there is a fitness thread that turns a mile long), then you can add a fitness section. And then when the fitness section starts to grow, you can break it down into maybe workout support groups, a food section, etc. Hopefully, you get the idea. Fewer forums with more posts make the forum look more active, and generally people will only post in an active forum.
Alrighty, so monetizing... I know that WF is really against digital content/book, but IMO you could create great value by understanding the needs of these people and work on writing content about the different aspects of life after prison. Alternatively, you could write the same content and make it free and monetize the pages. You could even hire ex-cons to write this stuff and it's a win-win for both sides. Just make sure you really understand what these guys need and work from there (this would be a terrible niche for me as I have no clue. lol).
Going from there, I would scour CJ and other networks to see if there is anything already out there that could help them. Stay away from all money making schemes and junk like that. As Jon said, that stuff sells hope, not results. Don't lose focus of trying to provide the most value possible. How you you help them better their chances of staying out of prison for good? Facilitating local support groups? Gathering ex-con-friendly local resources around the country? What factors improve their future outcomes? I am sure there are studies on this.
And of course, good Adsense integration in the forum, banner ads (if the SPM is worth it - otherwise, don't bother) and once you had enough traffic, you could try the Kontera/IntelliTXT route. IMO, these should just be part of your monetizing, not the whole thing.
This doesn't seem like the easiest niche to monetize, but then, I doubt you chose it for that reason. If you aren't totally passionate about helping these people create good lives after prison, I would suggest reconsidering this niche. Instead, build a site + forum around a brand or product - that's far easier to monetize.
I will keep thinking for you.
Laura