"Filter Timeline: Pinned Items" doesn't display member's items

Hello. I don't understand how does work "Filter Timeline: Pinned Items".
When SuperUser pin item in stream, it always display at the top of dashboard (for all users). So there is no reason to use "Filter Timeline: Pinned Items" to view SuperUser's pinned items because it's allready at the top of dashboard timeline.

But when regular member pin items in his profile's timeline and somebody use "Filter Timeline: Pinned Items", he doesn't see another user's pinned items.

I expected to see all pinned items when "Filter Timeline: Pinned Items" is enabled (all from all site).

When regular member use "Filter Timeline: Pinned Items" he see only his pinned items. But he allready see it in his profile. So, it a little bit useless to use "Filter Timeline: Pinned Items".

May it should work in other way or there is no need in such filter? I don't find it useful or appropriate.

Thanks.