How to best use bbpress for my site??

First, Inspiration Point (https://www.inspiration-point.org) is using a child version of TwentyEleven.

I did some reading and I’m liking what I am hearing about the bbpress forum plugin. On my site, there is area that I’m calling Shore Classified. Here’s what I’d like to do:

Shore Classified is born out of a frustration I had with my church. It’s not because they didn’t want to put a request on the church’s mailing list. It had to do with limited resource and wary of unwanted advertisements. I’m not the only one

Why not create a place where people can posts “blog updates”, “Christian business”, “Church Events”, “Help Wanted” and etc. My initial thought is to limit this to a region. It can easily be expanded.

I, obviously want to be careful and it’s why I didn’t jump on it. ?? Are there additional plugins? How can I best set the forum to safeguard against unwanted trolls? Can bbpress be configured to require registration before posting?

There are probably other questions that I should be asking. I’d appreciate some inputs. Thanks in advance.