Filter Posts by User
This one is an extra feature of the Usercard (the mini-profile pop-up):
If you click on a member’s profile picture in a topic it’ll bring up their usercard (if it’s not Hidden), and if that member has posted multiple times on that topic there’ll be a count of how many in a grey box under the profile picture. If you have your eyes set to ‘see’ (mine were not 
) then you may spot that there’s a ‘filter’ symbol next to the total. So, if you click on that box it’ll show you a truncated version of the conversation, made up of only that user’s contributions. 
