No registration required, what's the catch
One point of debate in the real estate net is whether to require registration to search the Charleston MLS. Some Charleston real estate agents think that if they don't require registration, real estate consumers can use their site to find a home but they won't make any money because they didn't capture contact information and convert them to a client.
Others, myself included, (and I've gone back and forth on the subject) feel that it's better to provide you with the information you are looking for without requiring registration (and that you can find elsewhere anyway) and if and when you're ready, then hopefully you'll choose to use them (me) as your real estate agent.
So there's no catch.
A perfect example. I was with a client the other day who told me how much they enjoyed searching the MLS on my website. And that registration wasn't required because if it was, they would never have done so and would have found another real estate website (and agent) to use.
As it says on the front page of my website:
I'd love to work with you and help you find the perfect home in the greater Charleston area. But I'd prefer to start our relationship on the right foot by not asking for your personal information so that I can call you on the phone and bother you. After all, you came here to search for homes, not be hassled by another real estate agent. There’s no catch so happy house hunting! When you’re ready, let me know how I can be of help to you.
And there are two points I'd like to highlight in the above paragraph. After all, you came here to search for homes, not be hassled by another real estate agent & when you're ready, let me know how I can be of help to you.
Because finding a home is the easy part.
Getting a contract negotiated and ratified, obtaining financing, dealing with inspections and so much more are the elements where the experience of a real estate professional is of the most benefit to a real estate consumer.
So unless you want to save a favorite, save a search or get listing alerts when a property that meets your search criteria comes on the market, you don't have to register to search the Charleston MLS. 
Because after all, you don’t really want to be a lead, do you?