Thank you all for the answers... I now have a good understanding of the reason it is the way it is.  Unfortunately, I do need to see who is Signed in/online and who is not, regardless if they will later on get the message or not, so Spark is not my o...

Not necessarily a full "presence" like status, but lets say you have a 5 participant group chat, you want to see who is signed in and who is not signed in.  I'm having seeing the status of the people that are part of the group chat, I'm not looking f...