You are being deployed right now 
@codinghorror, looking at how @vinothkannans change operates it seems fine to me my reading of the new logic change is:
- We unconditionally show message creator
- We unconditionally show last poster
- We show frequent posters on the message if we have enough
- If we don’t have enough slots to fill the 3 frequent poster slots we start taking users from
topic_allowed_users
Change seems fine to me with the caveat of not handling topic allowed groups, for example if an end user on meta sends a message to team and looks at the sent list, they will not see the team avatar. They will see our individual avatar though as we reply. We should think through what the ideal thing is to do here.