MUA "automatically signs keys"?

[Johannes Zarl]

Hi,

I've meanwhile seen that others assumed the automatic-persona certification to 
use exportable signatures. To clarify:

As far as I understood the original idea, it would use local signatures only 
(preferably done with a special purpose local key only used for these 
signatures).

If one would export these signatures, that would just DDoS the key server 
infrastructure for no gain.

Cheers,
  Johannes