Casey
Winters

Casey Winters is building his third act. The first two involved faxed restaurant orders, Pinterest's slow march to international dominance, and a pandemic that erased the entire live events market the day after he arrived to run product at Eventbrite. His third act - SuperMe, an AI-native professional network backed by Greylock and Reid Hoffman - is an attempt to do for operator expertise what Grubhub did for pizza delivery: make it available to anyone, anywhere, on demand.

He was the 15th employee at Grubhub. His job description on day one: double the growth rate by next month. The product at the time confirmed orders by fax. The restaurant selection was the real value. The technology was, by his own word, "embarrassingly bad." None of that mattered. He built city-expansion playbooks using SEO, localized landing pages, and SEM. He ran personalized email campaigns before personalization was a buzzword. He evaluated everything with a six-month payback metric that most marketing teams still haven't discovered. By the time Grubhub IPO'd, he had taken it from 40,000 customers in 3 cities to 3 million users in 1,000+ cities.

He first saw the word "growth" used as a job function in an Andrew Chen blog post in 2012 - midway through his Grubhub tenure, doing the job without the name. He has since become one of the clearest thinkers the discipline has produced. Not because he invented a framework. Because he never trusted one.

Pinterest was a different puzzle. Forty million users, mostly US-based, mostly social-driven. His team made it something else: an SEO powerhouse with international ambition. Organic Google traffic tripled. Conversion to signup went up 5x. Users headed toward 400 million. The mechanism was less about viral loops and more about Pinterest CEO Ben Silbermann's willingness to pull resources from high-performing US growth to fund international expansion - accepting short-term metric pain for long-term category ownership. Casey calls it the marshmallow test.

He left Pinterest in 2017 for Greylock as Growth Advisor in Residence - a role invented largely for him. The portfolio he touched during that period reads like a greatest-hits of the last decade's breakout companies: Airbnb, Canva, Discord, Figma, Tinder, Reddit, Thumbtack. He was not there to give lectures. He was there to find the bottleneck.

Then came Eventbrite. He joined as CPO in June 2019. Nine months later, COVID-19 shut down live events globally. The entire market the company served - conferences, concerts, community gatherings - evaporated. Winters did not leave. He deployed "every bullet": virtual event tools, bulk refunds, postponement infrastructure, creator cash-wire refunds, loan application guides. His philosophy on catastrophic events is direct: you never want to be on the other side having failed saying we could have done more. When the pandemic lifted, Eventbrite emerged with a product-led growth strategy it had not previously had, with self-generated demand rising from 0% to roughly 30% of total traffic.

His writing at caseyaccidental.com - named after K.C. Accidental, the original name of Broken Social Scene, because Casey was a music blogger for five years before he was a business blogger - has shaped how a generation of product and growth practitioners thinks. He coined the term "zero interest rate phenomenon PM": the product manager who only succeeds in resource-rich environments and reveals themselves under constraint. He argues that peer learning often provides more leverage than traditional mentorship. He warns against cargo-culting growth frameworks borrowed from companies with completely different business models.

SuperMe came from a specific frustration. The best operational knowledge in tech - the hard-won insights about what actually works - has migrated from public feeds into private networks. Algorithms reward virality over nuance. Top operators stopped sharing. The gap between who has access to that knowledge and who doesn't has widened. Casey and co-founder Ludo Antonov (a former Pinterest colleague, later at Whatnot) set out to change the architecture. SuperMe converts real operator expertise - talks, notes, documents, writing - into interactive AI profiles. You ask Casey a question. An AI trained on his actual body of work answers. Three thousand profiles live on the platform. Thirty thousand conversations have happened. Reid Hoffman is an investor. He called it "the future of professional knowledge." The seed round closed at $6.8 million.

The ambition is not casual. Casey is explicit that he believes knowledge has become too expensive to access - not in dollars, but in who you know. SuperMe is his attempt to route around that. It is also, quietly, an argument about what AI should actually do: not replace practitioners, but multiply them.