I use several other sites that use similar forum s/w and all have a "Show My Posts" button. This button lets me sign-in and see all the threads that I've posted in, highlighting the new ones. Since I posted there, I'm interested in them I'd love to have that here... Am I just missing it?
Click on your username on the right by the "Welcome." On the next page, in the column on the right click on "show all statistics." The next page that comes up will have a "show all posts" link.
It used to be there... a few iterations of PriusChat ago lol. jay_man's method is one alternative. The other is subscribing to a thread.
There's also an option in your personal settings to automatically subscribe to any thread you either start or post in. Then you can hit the quick links button and click on subscribed threads.