You can view recent topics by a specific user by visiting their user profile page. Besides that you could or the users in a group and visit the group page.
Those are the only options afaik
Right now, in the personna theme, the subcategories show in a 2-column table, and the description disappears from them. How can I make subcategories just indented under the main category, and show the description after each one??
Is this possible with just a CSS change, or is it more than that. Because the description is disappearing when making a category into a sub-category, I'm thinking it's more than just CSS.