Kathryn
It was on fire when I laid down on it.
The problem is that technically you are still an official member of the Catholic Church even though you do not wish to be when all they'll do is put a note next to your name indicating that you've left the church. That doesn't mean that you are regarded by the RCC as a non-member, quite the contrary in fact.
Protestant churches will designate on their membership roster that the person is released from membership. That's a different thing.
The suspicion Catholics seeking "de-baptism" have is that the RCC is still counting them as members...and that may be valid since the Church's belief is that baptism is from God and leaves an indelible mark on the person's soul. Thus, the notation is that YOU have left the church, but the church still includes you in its ranks hoping that you'll repent and return to being an active Catholic.
So what? Who gives a rat's ***?