I recently made a new forum game and its side-thread, I have posted a few times on the forum thread but it seems to have glitched, I suspect it might be the character i'm using might be wrong, it contains alot of brackets. Its called Cycle Online - Character Creation Guide
You could switch to using rounded brackets, I think certain brackets like the square bracket and arrowhead (Is that its name?) will mess up certain Forums as it might be interpreted by the system as BB code gone wrong.
If you use a lot of chevrons/angle brackets, which are the ones between the M and the forward slash/question mark, make sure you put a space between the < and whatever follows it, or else the site will recognize it as HTML code, which has been banned from forum use, and all of the text following the < will be completely erased.