You can get to it, either by clicking the "Special BBcode" button next to Font, or by typing out [ spoiler] and then ending it with a [/ spoiler] (no spaces)
You end up with something like this:
Spoiler
Posted 26 March 2012 - 08:11 AM
Posted 26 March 2012 - 08:20 AM
ΝΙΨΟΝ ΑΝΟΜΗΜΑΤΑ ΜΗ ΜΟΝΑΝ ΟΨΙΝ
Posted 26 March 2012 - 08:21 AM
Posted 26 March 2012 - 08:34 AM
ΝΙΨΟΝ ΑΝΟΜΗΜΑΤΑ ΜΗ ΜΟΝΑΝ ΟΨΙΝ
Posted 10 August 2012 - 08:42 AM