Subkey revocation means losing signatures?

[Realos]

hi,

>
>yes adding a new one and revoking the old one. The original question was about modifyuing the uid.

I think I got the point. Deleting a UID results in loss of signatures 
while revkong a UID doesn't if it signs the new UID prior to being deleted.

What about creating an empty uid, i.e. without any email address and
requesting people to sign that uid in addition to respective UIDs with
email address?

-- 
Realos