Lewis C. Lin 🚴🏽♂️ @Lewis_Lin
8x Bestselling Author | CEO x 2: ManageBetter + Impact Interview | 👆Follow for management + PM insights | Google | Stanford lewis-lin.com ubiquitous Joined February 2009-
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I published my professional deep dive, leveraging frameworks from Decode and Conquer 5th Ed. Read the complete analysis and scoring methodology: lewislin.substack.com/p/d11-improve-…
The instinct is to fix the supply side. Airbnb tried that in 2024 with mass delistings. Product thinking that skips the measurement layer is why guest trust didn't recover.
Most Airbnb listings score 4.5 stars or higher. That's not a quality problem—it's a measurement collapse: the signal guests rely on before booking no longer works.
@DDInvesting This could also be a strategic hedge. Kirkland is in the business of renting human lawyers. What if AI lawyers become norm in the future, a handful of companies own the AI, and Kirkland has nothing?
@jasonlk A product leader is going into renewal discussions, and I told her not to sign anything that's more than a 1 year deal. Last thing you want to do is to get stuck with 2021-era software in 2029.
Time spent can't tell them apart. Consumption doesn't build communities. Contribution does. I published my professional deep dive, leveraging frameworks from Decode and Conquer 5th Ed. Read the complete analysis and scoring methodology: lewislin.substack.com/p/m34-success-…
Ninety percent of Facebook Groups members never post — and measuring time spent hides it. Most product leaders optimize for session length anyway. But a member scrolling silently for 20 minutes looks identical to one who sparks a 40-comment thread.
I published my professional deep dive, leveraging frameworks from Decode and Conquer 5th Ed. Read the complete analysis and scoring methodology: lewislin.substack.com/p/d8-improve-t…
Most product leaders go straight there anyway. But gift buyers don't fail at the results. They fail at the search bar. They know the person, the occasion, the budget. They just can't turn "my mom loves gardening" into a keyword. Better filters don't fix a translation problem.
Etsy's discovery problem isn't a search problem. 30–40% of high-intent gift sessions end in abandonment, and fixing the results page won't touch it.
I published my professional deep dive, leveraging frameworks from Decode and Conquer 5th Ed. Read the complete analysis and scoring methodology: lewislin.substack.com/p/m39-goals-an…
One metric breaks that pattern: it only goes up when you catch more scams and stop wrongly flagging legitimate users. Inflate one side and the other pulls the score back down.
Most metrics for Meta's anti-scamming product can be gamed. Flag more content and detection volume looks great, but accuracy stays flat. Polish the warning UX and satisfaction scores climb, but real threats keep slipping through.
I published my professional deep dive, leveraging frameworks from Decode and Conquer 5th Ed. Read the complete analysis and scoring methodology: lewislin.substack.com/p/g28-hidden-s…
Better tools won't fix that. Higher opportunity cost will always beat lower friction.
YouTube Shorts view time is up. Uploads are down. The obvious read: creator burnout. The real read: Shorts is losing a bidding war against brand deals, live events, and TikTok bonuses for the same creator hours.
For complete preparation, get Decode and Conquer 5th Edition — the only PM interview resource built for how modern marketplace-driven companies like DoorDash actually interview.
Then drill these three pillars: 🧠 Product Sense — decompose problems, know your metrics 🎯 Prioritization — R.I.C.E. framework + smart trade-offs ⚡ Values & Ops — bias for action, ownership, fire drills
Have an upcoming DoorDash PM interview? I created this cheat sheet to help you get up to speed. Start here: master the three-sided marketplace (Merchants, Dashers, Consumers) — because multi-sided empathy is the lens DoorDash PMs think in.
I published my professional deep dive, leveraging frameworks from Decode and Conquer 5th Ed. Read the complete analysis and scoring methodology: lewislin.substack.com/p/m30-success-…
This deep dive reveals why that instinct fails and why the metric you choose here determines your entire product roadmap.
"What's the North Star Metric for Facebook Events?" has no obvious answer—and that's the trap. Most product leaders want to optimize event supply, user demand, and ticket revenue simultaneously.
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