Bug With Writing Posts or Replies

So I have noticed something when I have been writing posts or replies to other users. Many times when I go to write a post and I have to backspace an error out I will begin retyping and all my text turns bold and I have to cancel the post and restart. Sometimes deleting all the text and restarting helps but its a pain in the ass. I have noticed this in both Chrome and Firefox to my knowledge.

http://www.giantbomb.com/forums/bug-reporting-33/randomly-bolding-font-when-typing-in-forums-1469526/#12