I don't exactly have hard data on this, since it's not something you think of tracking (nor do we have the tools for it at my agency), but I could swear Google made adjustments to the Filtering algorithm.
It seems they're willing to show a greater proportion of the profiles at a given address. Last year I wouldn't see more than one profile unless there were at least 15 or twenty of them. Now I sometimes see 2 profiles with as few as five or six profiles at the same address. Conversely, it seems Google is less willing to show the filtered profiles through the methods that used to work (either that or the SAB profiles I deal with are not where I think they are supposed to be!).
It seems they're willing to show a greater proportion of the profiles at a given address. Last year I wouldn't see more than one profile unless there were at least 15 or twenty of them. Now I sometimes see 2 profiles with as few as five or six profiles at the same address. Conversely, it seems Google is less willing to show the filtered profiles through the methods that used to work (either that or the SAB profiles I deal with are not where I think they are supposed to be!).