My experience with FSBOs is that the seller thinks he should pocket the money saved on realtors and the buyer thinks he should pocket the same savings – ie, there is an impasse between buyer and seller so the deal is less likely to close.
My realtor says that most times when she has been involved with FSBO sellers she ends up doing the paperwork which a seller’s agent usually does.
As a seller I would never do a FSBO because of the liability involved. It helps me sleep at night knowing that my agent shares my liability as a seller and is therefore motivated to protect me from doing something stupid / illegal / questionable.
Bottom line for me: it isn’t worth the liability to sell as a FSBO.