Why is everybody else's TITLES in BOLD and MINE isn't?

Whenever I make a post here, my title appears in regular text....but I see everyone else's titles are in bold. Why is that? Am I doing something wrong?

Thanks.

-D

Everyone's Titles including yours are in BOLD text when first posted. However, the first time the thread is opened by a User, the Title is no longer in BOLD to just them to let that User know that they have already visited the thread. However, for all other Users, the title remains in BOLD text to them until they open it.