I didn't know some had become fruitful. All I know is the blooms falling off clog my pool skimmer basket and I have to empty it several times a day when my neighbor's tree is blooming. And they have branching of about 25 or 30 degrees, which makes a very weak branch with not enough wood tissue in the branch to support the limbs once they get large, so the branches split, frequently causing splits down the main trunk. My neighbor had 3 of them until two split down the trunks and almost took out part of his house.
Some of the other varieties are just as attractive without the weak branching, but plant nurseries continue to stock the Bradford variety and developers continue to plant them.