I was wondering if anyone has successfully implemented a way to store a users IP that submits a review and possibly limit the reviews to one or more of submissions per IP. I think I have the limited skills to log the IP, I just don't think I would be able to do a submission limiter.
What would be ideal and I may attempt to do is use the IP address blacklist in the backend and try to mangle together some sort of banning system that will lock up reviews and comments after so many submissions or something. We will see if I am able to pull it off.
You might find some good direction in our "Building with concrete5" forum. That's where the most developer-oriented chat happens:
http://www.concrete5.org/community/forums/customizing_c5/...
Folks are usually pretty eager to help, especially if it's a project they'd find useful on their own site.