The post makes it sound as if it was a coincidence, but it's a bit hard to believe since over 100 UIDs prior are just six-letter garbage account names. On the other hand, NiceRoundNumber and million+one seem to have been trying to get clever numbers for their UIDs, so maybe richardcpeterson got lucky. I'm actually a bit surprised that there wasn't a story posted to the front-page about it. I know CmdrTaco doesn't care for "navel gazing," as he calls it, but it does seem like something of an event. Maybe when it hits 10^9.
Of course, the best part is that now us 6-digit UIDs have people to look down on.