Are you insane?
Did you push the houseowner "post button" and fill in the blanks?
"I bought a house in <desirable area>. Blah. Blah. Blah. And for desirable areas like <desirable area> I don't think it will even drop that much at all."
Numpty. THEY HAVE ALREADY DROPPED BY 22% ACCORDING TO YOUR OWN ADMISSION!!!!!