ID:136314
 
If you e-mail DanTom about deleting your old keys, will they actually do it?
I dunno. There's two security risks involved -- one, that someone managed to find your email account and password and is impersonating you; two, that you can promise a service, collect payment, then delete your identity.
In response to Spuzzum
Also, having a key deleted would mean that someone else could register that key, which could cause some confusion.