@delores I need to figure this out yet :-) The Source code of #AndStatus is open, so everybody is welcome to help in this investigation.
I also noticed that some unrelated posts are marked as "Replies to me". This bug may be related to this new feature: Actors in different Social networks (having the same Webfinger Id) are logically linked to allow you to see their joined profile page (including notes by these actors, received from different networks).
Stay turned!