Well, I watch HOGAN'S HEROES, so yeah. Getting off topic, I'm aware that they did a biopic about him with Greg Kinnear, to which his family contested saying the film basically sugar coated his life to make it seem like he was a, "Saint who was corrupted by the evils of Hollywood".
But I digress, true, personal lives are called "personal" for a reason, and what they choose to do in private isn't supposed to be any business of ours... but that's actually the downfall of living in the information age: all it takes is ONE little leak to get out, and boom, the internet, the news, social media, etc. is buzzing over these people's moments of argueably poor judgement.
Grover even played this for laughs when he was on Jimmy Kimmel, where they started discussing his alter-ego, Super Grover. "Yes, the tabloids blew the cover off me and my story a long time ago..."