Replying with your post quoted, and it looks like this:
[ quote name='StuartR' date=' 20 Nov 2009 17:12' timestamp='1258737148' post='804245']
[ acronym=This is the first word of the sentence]The[ /acronym] [ acronym=Using the initial letters of words to create a a short form]acronym[ /acronym] [ acronym=A code used to control the lounge software]tag[ /acronym] [ acronym=In the V2 version of IPB]used[ /acronym] to [ acronym=like this, but with dots]include a dotted underline[ /acronym], [ acronym=maybe it was in the past, but sadly it is no longer]which was[ /acronym] a [ acronym=quite a lot actually]bit of[ /acronym] a [ acronym=a hint or suggestion that could help people]clue[ /acronym] that it [ acronym=more than might really, a definite probability]might be worth[ /acronym] [ acronym=moving the cursor to the word with your mouse and waiting]hovering[ /acronym].
The sentence above gives no clue as to which word has an associated pop up. If I hadn't warned you, you might not have known to hover your mouse over every word to see.
...which might be a bit confusing if you are trying to reply using the quoted text in context!