Quote Originally Posted by DVX BELLORVM

You can destroy unwanted guilds without any major consequences. You will loose points only in that settlement, and only for that guild type.

[later]

That's right, if you destroy a guild you loose 100 points in this settlement, and 20 points in all the others.
Aren't those contradictory? With some guilds wouldn't the loss of 20 points be prohibitive? Anyway, you've convinced me to send the wreckers to the Thieves Guild in Venice since I have another in Milan. [The wreckers wouldn't *dare* try that with an Assassins Guild!]