To share the answer to my question (after receiving a very quick response
from BitDefender Technical Support):
The program is *designed* to operate in a way that all users on the local
machine share the same settings (friends list, spammers list, bayesian word
list, etc). The only thing the 'multi-user support' feature does is allow
all users access to the settings console. Hhmmmm...
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Phil Ellwood
Remove spam around blueyonder to reply