Here's my .02
Marketing and Liability Coverage is what an agent can bring to the table. Along with a zero hastle.
Go to work, do what you do best, let other agents shlep their buyers through your property. More eyes through the door, means more opportunities. In this market most agents are only working with qualified buyers anyway.
Word of advice on flat fee MLS, many agents don't even put them on the list to show thier buyers, there is an unofficial stigma with discount listings.
Another thing to consider, even if you price competitively with other listings in your area, the person knows you are making 6% vs a listing so you already start off with a 10% or lower offer anyway.
I'm assuming since you are on bigger pockets you also invest in real estate, well who are the first individuals most investors target? Fizbos. So you have investors asking you what you would take if "They could pay cash and close on Friday(i.e. ARV less 30% less repairs less wholesale fee)." tire kickers, and hopefully the neighbor walking your block.
Meanwhile those buyers who CAN buy, and are prequalified, well, they are all working with agents, and they just drove by your home.
If this is not your business let someone sell your home for you.
Here is a link with some more info:
http://activerain.com/blogsview/820933/for-sale-by-owner-vs-realtor-the-age-old-question