Hacker News Reader

I think there’s one way this might work. To get hired at the next place they might want you to have experience. So you put your prior employer on the application, the new restaurant checks your references and mysteriously decides to pass on you.

Yeah the closest your going to get to a restaurant cabal are owners gossiping at the local wholesaler while waiting for their purchase to be processed, and even then there's a 50/50 chance a member of them is lying in order to bait a competitor into making a bad hire

It might be funny, but in Mexico it's done differently.

There are Whatsapp groups of HRs working in a particular group (tech, construction, etc.) where they communicate. Obviously they don't discuss the names openly but they do ask if someone is willing to give feedback on a candidate that worked at XY.