I've noticed that despite blocking a few users here i can still see their discussions listed on the public discussion board and can still see their comments posted within those discussions as they can see mine.
That seems to me a mechanism that could be used by blocked users to circumvent the block.
Now that i am aware of it i can act appropriately but it could give someone a nasty shock one day.
Block IMHO should erase that user from my perception of Geni as if they were just another unclaimed profile/
Not sure of the programming feasibility.