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Y Combinator President Sam Altman
On Monday, at Demo Day, Y Combinator's big startup pitching event, Altman reiterated his concerns over these issues.
"I don't think founders have to take lesser valuations - their valuations are very, very high," Altman told Business Insider.
"But I don't think it's necessarily good when companies are able to raise money at very high valuations, or raise lots and lots of money."
Altman said it's particularly important for startups in their early stage to first establish a culture that works well before taking on too much money, which he says could potentially have adverse effects.
"The market is the market, and I can't stop that. But the track record of companies that raise huge amounts of money at a huge valuation as their first round, like Color or Clinkle, is not good," he said. "The culture gets messed up."
Altman has a point with those two startups. Color started off as a photo-sharing app that raised $41 million in 2011 before adding a single user - but the product was confusing, and after a few pivots, the company sold to Apple without ever releasing a hit product. Clinkle was supposed to be a payment app that raised $30 million in early fund that went through all kinds of changes before launching a confusing and scaled-down service late last year.
"Frugality is sometimes incredibly important for startups. I think there's a long history of this working well with the focusing effect of limited resources," Altman added.
And if you look at some of the most successful startups to come out of Y Combinator, they all took small seed rounds before raising huge rounds later on. Dropbox, now worth over $10 billion, only took $1.2 million in seed money and $6 million in its Series A. Airbnb, another $10 billion-plus company out of YC, had only $600,000 in seed funding, before raising $7.2 million for its Series A.