one key or multiple keys

[Marcin Gil]

This question came up recently:

Should I use only ONE key for every email address I have
(with multiple IDs, eg. Marcin Gil <email #1>, Marcin Gil <email #2>)
or should I use multiple keys -- one for every email address?

Regards,
-- 
  Marcin Gil
    email#   mgil : vernet pl | GaduGadu ID# 185057
    JID# dentharg : chrome pl | OpenPGP Key# 0x1C8C4ABE