Just look at this video recorded only in 2013 and see how relaxed people were back then. Okay, I'm not defending that image either, but now everything is so serious. Did you get into YC? Are you a Harvard graduate? Do you have a PhD in AI? Do you have amazing traction? No? Then get out.
Genius Co-founders at TechCrunch Disrupt
https://www.youtube.com/watch?v=4NAzQPll7Lo&t=1489s
Travis Kalanick's Presentation
https://www.youtube.com/watch?v=YQDlqOVxUqA