Big pointer to Snape as Vampire

[toogoodforthisearth]

No: HPFGUIDX 47117

I simply can't believe that with all the clever people here that this 
hasn't come up at some point but I can't find it in the FAQ on Snape 
as Vampire so, cough, I'm going to stick my neck out. Names give 
clues to who the characters really are - Lupin, Sirius etc - well 
Severus Snape doesn't take alot of manipulation to become Severs Nape 
or cuts neck.

What do you think?