HOA: "No political speech please! This is an exclusive development!"

From How Appealing:

"Court Upholds Curbs on Signs in New Jersey": The New York Times on Friday will contain an article that begins, "In a ruling that could have implications far beyond New Jersey, the State Supreme Court on Thursday upheld the right of homeowners' associations to restrict the posting of political signs and other forms of constitutionally protected speech,as long as the restrictions are not 'unreasonable or oppressive.'"
You can access today's ruling of the Supreme Court of New Jersey at this link.

Query? Why isn't it always unreasonable for a HOA to restrict a homeowner's constitutionally protected expression on her own property?