[Suggestion] Blacklisting oversight

So I am a little baffled by the fact that when you blacklist someone, they are still able to see when you are online, as well as see and search your location/name.

I would like to suggest that when blacklisting someone they will then see you as "offline" even if you are online. This way they cannot find you or even know that you are online.

There is even a possibility for a situation where if you friend someone, and later blacklist them, if they do not remove you from their friendlist that you could even remain on their friendslist.... even though you personally have them blacklisted.... seems very unhelpful.

Thank you.