That is pretty much what they did. Posting publicly about the vulnerability most certainly meant that every hacker in the world tried (and probably succeeded) at reproducing it, all before the company had enough time to act.
Because this is explicitly what happens when a company doesn’t have a good process for accepting and responding to exploits.
The onus should entirely be on the company to invite researchers to find and report exploits in a responsible way. They are the ones at risk of losing millions of dollars over an exploit.
It's a16z, not Grandpappy's Model Railroad Museum Showcase ("Come see a photo of the tiniest steam wagon in Sheboygan!").
> someone from @a16z get in touch, now. its bad. security related.
https://x.com/xyz3va/status/1807330215955177937
If your email bounces, I think reaching out over social media is reasonable for a fast response.
It’s in everyone’s, especially the company’s, best interests to have a bug bounty and easily accessible security hotline. Expecting researchers to jump through hoops like contacting their offices’ front desks to get to security is absurd.