The policies of the United States government really have nothing to do with the policies a social media website can or should enact. I'm honestly not sure what I think of this precise situation, but it's not crazy to think that nothing good will come from running around posting the home addresses of unpopular politicians.
In the United States, the addresses of politicians are public records.
It's how journalists and the general public verify that they live in the districts they are elected to represent.