If you're wondering why some people say, "the past five years or so of startup mania has been insufferable and obnoxious and annoying," here is one example.

So, do you think they put participating as a clause in the term sheet?

This past Saturday, Kevin Systrom spun a set at Rain nightclub at the Palms Hotel in Las Vegas, which was covered by TMZ. Before you insert an eyeroll emoji, please refer to this curtain-opener in Vegas Seven recounting Mr. Systrom's teenage years selling vinyl records to Paul Oakenfold and Paul van Dyk.

AllThingsD's Mike Isaac insists, "I spoke to a few people who are attending and they tell me that not only is it a fun Vegas road trip, but that Systrom is a legitimately talented DJ," expressing some remorse about not attending.

He would have run into plenty of fellow journalists, including TechCrunch co-editor Alexia Tsotsis and reporter Josh Constine, who covers Instagram owner Facebook for the site and recently helped squash rumors of a privacy leak. ABC News' Maya Baratz and the Wall Street Journal's Evelyn Rusli, who just ended an impressive run at Dealbook, also showed up. As did CNET columnist Ben Parr, fresh off starring in a Silicon Valley "Gangnam Style" parody video. See now, the rooftop pool at the Palms' Hugh Hefner Sky Villa, where guests congregated, would have been perfect for emulating Psy's satire of excess.

In case this inspires a bout of FOMO, Loïc Le Meur, founder and CEO of Le Web, posted an ear-bleeding video of the smoke machine-fueled festivities on his Path account. Seems like the kind of night that looks better on Instagram than it did in person.

According to AllThingsD, Mr. Systrom "sent out Facebook invitations to a few hundred techies in the Bay Area, and at least 100 of them have RSVP’d an emphatic 'yes' to join him in Vegas." Among the emphatic? "Entourage" star turned Churchkey Can founder  and Disrupt presenter Adrian Grenier, "which answers the question, 'What's that guy been up to?' quipped TMZ. Once TMZ starts reading TechCrunch, then we can call the celebrification of startups complete.