Observations and inanities by a second-shift assistant supervisor in the Puppy-Grinding division of the Evil Atheist Conspiracy® (our motto: "Sure it's cruel, but think of the jobs!"), your host, Brent Rasmussen.
So, saw this over on MetaFilter:
The certificate declares:
I ________ having been subjected to the Rite of Christian Baptism in infancy (before reaching an age of consent), hereby publicly revoke any implications of that Rite and renounce the Church that carried it out. In the name of human reason, I reject all its Creeds and all other such superstition in particular, the perfidious belief that any baby needs to be cleansed by Baptism of alleged ORIGINAL SIN, and the evil power of supposed demons. I wish to be excluded henceforth from enhanced claims of church membership numbers based on past baptismal statistics used, for example, for the purpose of securing legislative privilege.”
It's a UK-based group, which explains the final sentence in the document.
Anyway, it's an interesting discussion on MeFi, which you might enjoy looking through (and contains this snark gem: "When I gaze upon a newborn baby all I see is a filthy sinner who is going straight to hell if something isn't done right quick."). And I thought I'd see if folks here had an opinion on the matter.
Personally, I never give any thought to such things as my own baptism. Though I suppose I wouldn't mind having my foreskin back. Ah well. Anyway, while it isn't for me, I can see why some people might feel it empowering to have some such document - a small ritual that terminated any claim that a church might have over them.