I’ve read multiple accounts of how social networking has affected or killed real estate deals.
Imagine the seller that finds a potential buyer’s Facebook page stating how they were planning a lowball offer but that they loved the house so much, they’d pay much more. Think that would affect the seller’s final asking price?
Imagine the seller who is talking about how desperate they are to get out of their home. A potential buyer (or real estate agent) could use this information to scrape tens of thousands of dollars right out of their pocket.
I had a friend who was recently going through both the buying and selling aspect in trying to upgrade their home. They handled it about as perfect as could be.