OK...lemme tell ya.
Running a good Classifieds section can indeed be a fair amount of work. With a thriving community, if it takes off right away....you'd need someone to mod that section exclusively.
It is ,IMNSHO, better to have some "requirement" for Classies access...you don't want or need every Tom, Dick and Harry wandering in, that kinda defeats the purpose of dealing with folks you already know.
No matter what, sooner or later there will be a situation where someone gets screwed...unavoidable, nothing is 100% secure.
So...to sum up.
There would be additional staff (specifically Classies Mod)
That additional staff would need thier own usergroup...sort of a limited Admin type access.
There should be additional usergroups set up (after whatever requirement is met, auto-promotion to Classies access...and a group for those who have shown they cannot handle access
)...so, a bit extra work for Admin.
The new section itself to set up along with an area to hold all threads (Sold, deleted, etc...when it comes to folk's money, you never completely delete these threads...or shouldn't
)
If you set a "post count" requirement...you'll need to deal with those who attempt to "spam" thier way up to that number.
If you want as secure as possible an FS section as you can get...you need to implement some kind of "verification" process (pics, personal info, etc)...also it's best that those using Classies have a real email addy on file, no "free"mails.
Yes...it is indeed some work to do...it
can be a PITA as well. But, after you have things set up and kinks worked out, it can also be a help to the community.
Guess that's about all I can think of off the top of my head