In my experience, the forums and chat rooms definitely were the place to hang out, and there was no lack of folks to talk to or meet up with on any given day of the week.
The free chat rooms are usually teeming with people looking to meet up for adult dating, as opposed to many pay-per-use sites where the chat rooms are normally empty.
A typical visit to AFF finds most new users overwhelmed by the number of people in their area that are looking for adult fun, but this should be taken with a grain of salt.
The downsides to Adult Friend Finder - and there are a few - are that you can't contact other members or truly search for them unless you pay for a membership, or have a member with a special membership (see costs below) contact you first.
As well, I've found a higher-than-average proportion of members that use AFF as a means to gain new "clients" or haven't used the system in years.
That doesn't mean that the quality of matches were poor overall (especially in the larger metropolitan areas), but users need to be aware that a larger-than-average number of users aren't looking for casual, no-strings sex on AFF, but rather, they are looking for new clients. Although the initial sign up is relatively quick and easy, further review will show that the list of options that users can choose from to inform other members of their sexual interests and desires are vast and comprehensive.
Every legal sexual act imaginable is listed, along with a ranking mechanism for each as to how interested the user is in that particular subject, along with their experience.
I assumed I'd get a swarm of messages when I first joined, as I do on most dating sites with larger user numbers, but I didn't hear a peep from anyone for weeks when first checking it out.