Can you be more specific as to the use of defense buildings?
I've searched the FAQs, etc. and haven't found anything conclusive...just speculation.
I was able to determine the following:
Increasing level of defense buildings does not prevent or deter raiding
Increasing level does result in more units lost on those who raid
What is not clear:
Does increased level of defense raise overall defense score?
How are "nearby" buildings affected by defense buildings? Increased by number or percentage?
Are all buildings affected? Including other defense buildings?
Many upper level players have abandoned defense buildings altogether and I can certainly understand why - since their use is vague and not apparent. More of a "hope/faith" that they're doing their jobs rather than something measurable.
This area of the game has been sorely neglected.
Sincerely....