[your24hourstore]

usually members are not a problem, spammer's are , if its a legitimate user you can get a feel for the posts they leave, you can ban their accounts and ip of course if they do something that wrong. Why worry about it, assign some mods to watch category's. if its that big of a problem. Spam on the other hand will come as phony accounts that sign up never post, and when they do its a link, and they spam with signature.s as back links.
the spam has mods to deal with them in mod downloads, you should just go look at every single mod . there is so many I don't have time to tell you about them all, then ask in that mods section about if they work or whatever