This is a minor 'issue', but for myself, on the PC that I have Fences installed on, I'm primary user. I have 2 user accounts I use for different purposes (one is for system admin and troubleshooting, the other is for general usage). I have 3 other accounts for other members for the household that are used rarely.
Games, most applications and utilities, do not get setup on my admin account or on the user accounts associated with the rest of the household. So whenever a software install prompts me for profile setup, I tend to choose "Just for this account". Again, it's a minor issue/feature for me with respect to Fences, but it would be preferable to have the option to install only on the active user account and leave other profiles untouched.
That said, I've not logged into the other accounts to see if Fences setup initiates or not - so this may be a dead issue for me.