90% of B2B YC companies have 50% of their revenue coming from other YC companies 3 years ago
It’s definitely true in spirit, and I think well acknowledged by Y Combinatorians.
When you think critically about this number, the level matters almost 0, the trend means everything. It could be 90% and I wouldn’t care as long as that was steadily going down.
So ultimately, while this could be interpreted as suspicious or fishy, it could also be interpreted as, wow, they've really built a flywheel for growth.