not really a bad bug, but a bug nonetheless...
ok on the bottom of a topic with fastreply open, and you're just reading the thread, the text in the fast reply is normal text.
if you open a page where someone is replying and they are the last ones on the list , the text following that person'a name is italicised and dotted underlined.
fast reply, show smilies pop up window, enable smilies, and enable signature are in italics and dotted underline. the fast reply box and add reply, more options, and close fast reply buttons are underlined with the dottted line.