It looks like the "My Threads" link does the same thing as doing a "Search By User Name" going through the "Advanced Search" and not ticking the "Exact name" box. This may not have appeared as a glitch before as I'm sure there must be only a few usernames (like swag) that could actually be a part of someone else's username. In other words, nobody else has a username that contains l-o-2-e, so when I hit "My Threads", I only get results for me. So it looks like the solution is to just tick that box behind the scenes of the MyThreads link.