I love your plugin, and it does everything I want it to do except have the option to display widgets only on specific Buddypress-generated pages.
Buddypress creates at least four specific pages, yoursite.com/activity/, /forums/, /members/, and /groups/. However, they're not technically pages, (nor are they custom post types) so they are not recognized by Dynamic Widgets.
I realize this might be very complicated to implement, but on the off chance that it's not, I thought I would request the feature. FYI - I currently have a few dynamic widgets that do not show up on these pages with the widget settings set to only certain categories. I know that's probably not helpful.
Also regarding Buddypress, the way it's set up is kind of weird. If I were you and this were feasible, have the option for a widget to show up on /activity/ simply yes or no, /members/ yes or no, and then filtered by group (which group would you like this widget to show up on?) - each forum post is linked to a group.
I'd be happy to help you test this out, or answer any questions if I wasn't clear.