Don't Understand What's Happened Over An Infraction

I received a message from a mod telling me I had received an infraction for a message I posted in After Hours. When I went back and looked at the message it had a red card next to it and if I hovered my mouse over it it said I had received an infraction.

I replied to the mod saying that I felt I was being singled out as that thread was full of very similar comments which directly contravened the rule I was supposed to have broken, from the very first page and on almost every page up until page 12 where I commented, which hadn't received any infraction. I also reported each similar post and then contacted the mod again to say I had done so to provide evidence that I had not been alone and had thought, because no-one else had been called up on the issue, that it was OK to post a similar joke.

Now when I check my private messages the original message from the mod is gone and when I check the thread my message which received the infraction no longer has a red card next to it.

I understand the reasoning for why I was given an infraction, even if I don't agree with it as I felt my joke was taken badly rather than how it was meant. What I didn't particularly like was that other users had posted loads of similar jokes and hadn't received infractions and had they done so I would have been forewarned not to do the same myself. It is also something that, now I understand what it not acceptable, I won't be repeating.

However, I am completely confused as to what is going on regarding the original private message having gone missing and the red card seemingly disappeared.

The thread is here:

http://www.boards.ie/vbulletin/showthread.php?t=2057500210