What the company or idea is
PayPal was a third-party online payment processor that became eBay’s de facto and then default payment method.
How it actually makes money
PayPal made money by charging fees on transactions processed through its platform, primarily on eBay auctions and closed listings.
What works
PayPal worked because it solved real user behaviour: buyers and sellers on eBay adopted it organically, bypassing eBay’s clunky native options. Over 70% of auctions accepted it; ~25% of closed listings used it.
What does not
PayPal did not operate independently after acquisition. Its integration required eBay to kill its own Billpoint service — exposing the strategic cost of buying rather than building.
What to take from it
Acquisition was not about technology or talent. It was about eliminating friction in the checkout flow — and eliminating a competitor — to capture revenue from every transaction on the marketplace.
Is it worth your time
Yes. It is a textbook case of platform capture: how an acquirer neutralises competition, consolidates control over payment flows, and monetises infrastructure built by users.





