Hard to find replies to posts. Used to be able to search on username and find all posts by a user. Unread threads highlighted. Type in your own name to find your posts. Now when you use the search function you only find threads started by the username and not all threads in which the user has posted.
The functionality is still there. If you go to the top of the advanced search entry form, there are two 'tabs,' default is "multiple types;" select "single type" and then to the right of the usename box there is a drop down list that allows you to select "find posts by user" or "find threads started by user."
Does that solve your issue? Hope it helps!