Josh Ostrovsky, the entrepreneur and comedian long known as @thefatjewish on Instagram — where he has 9.5 million followers — is listing his midcentury Miami Shores home for $4.25 million. And he’s making quite a profit in the process. Best known for his gravity-defying hairband, Ostrovsky is married to Caitlin King with whom he has a son, Buddy. In 2015, ...