So what is social media for then? Should we go back to slide evenings with holiday photos? Spending all day writing letters to people filling them in?
You make absolutely no sense.
How did people connect with anyone before social media?
You have no idea how terrible people are with grief (well actually you might) and that is one thing that social media has made much better about the world. Allowing people to display and share their grief, and giving people an easy way to connect with others is invaluable.
Not everyone is going to send a card (or even know your address) but it's easy to let people know you're thinking about them and that means a great deal. It helps me greatly that hundreds of people have seen his photo that day, just as I see photos of their children who are still here.
I couldn't care less what you think, but I'd hate to think that someone who is grieving would think twice about something that could bring them a degree of comfort, because some people might think it's 'vile, or cringe, or embarrassing' and then start a thread so they can bitch about it.
It says far more about you than it does about me.