Your passing wouldn't cause it; and it could happen to anybody. However having it happen after you die is going to have an emotional impact on those who are still alive. How would it feel to open up facebook and see that you have a message from your deceased spouse? Not very good I imagine.
I think it is entirely reasonable that some people would want to prevent this from happening.
It's clear we disagree, and neither party will be convincing the other, so I thought I'd just leave something to think about and move on. Alas, here we are again.
I think it is entirely reasonable that some people would want to prevent this from happening.