I've done this somewhat. Just cause I'm so messed up I don't want to talk to people.
Most of them don't pay attention. Some of them reach out. But I know even the ones that don't pay attention, they actually do care about me. They are just doing whatever they are doing. I don't think going dark is really a good test of how much people care about you, personally.
Sorry you are feeling this disconnection and loneliness
I relate to this a lot. Couldn't phrase it much better.
I've done that quite a few times over short periods. The last one has been for a whole year now, in preparation for my suicide, even though I cancelled that I still kept up with the no contact and disappearing bit.
Some people reach out, but truth is people keep on living, each doing their own thing out there. Same as when you die, you can't expect otherwise.
I agree it's not a good meter to test that.
It's a cry for help that can often go unanswered, not how we wished it would, and then sink us further down. And I also get the call for that to happen as a final push to end things...
So I get why you'd want to do it. I wish you didn't have to though. Sorry for your shitty situation, I hope you get to feel a bit better for the time being. Hugs <3