Can you star your own posts?

Why? If you believe your thread is worth the attention, then there shouldn't be a problem with it. Just as you can add tags to your thread to draw in more traffic.

Its not possible to star your own posts.

Of course you can create a sock puppet with which you not only star your own posts but can even bump your own threads and "talk to yourself". But these are gross T&C Violations and we look out for this stuff. If we see it happening, we take action.

I prefer talking to myself in the comfort of my own home. Don't know about you guys.