Suggestion Top Problems I See On New Digitalpoint, Summarized

One more problem.
At our conversations page,
https://forums.digitalpoint.com/conversations/

If we want to check "specific" member's Conversation/PM then almost his/her user id not shown on the conversation page if the last PM sent by us during correspondence. And if we want to open and check the PM conversation of the "specific" member to whom we need to do something then we should have to open so many PMs and after sorting many PMs we could find our desired person's PM.

I think the Mod. understand my point.
Is there any solution to this problem ?