What Party Was This? Contest!

Why were so many chobots on at 15:33 (chobots time) on 10.10.09? I will give you one hint... hiki was not on. I have no idea why that chobot said "HIKI PLZ". As you can see there are empty boxes and no, it was not a glitch party I edited it because there were some spamers and one said the answer to the question. XD lol

Thanks,

Priceslechta1