why an increase in price of this listing?

why Corcoran is increasing a price of a listing sitting on the market for 6 months? my guess is that everybody says that Red hook is hot, super hot! but listings like this sit on the market for months, even more than 6 months, see 89 Pioneer street. Truth is that those listings are about 30% above the market price and all offers are way lower. At Corcoran are tired to show a listing for 6 months and getting offer below $1M, so are now sending a sign ( fake!) that there is such an high interest for this property at that price that they need to increase the price!