‘Nexus’ is vague. The page is specifically asking founders to participate in YC’s program and showing founders that participated in YC’s program. Altman’s company Loopt failed - Altman went on to work on OpenAI and YC Research allegedly pledged money: we get it, but that’s not the typical YC founder experience, and it wasn’t Sam’s experience with Loopt.

In addition YC Research didn’t send their pledged funds to OpenAI:

https://archive.ph/20230518211335/https://techcrunch.com/202...

> According to federal tax filings, at least one of the named donors, YC Research, never gave a single dollar