If nothing else, I could teach you that zeromq has nothing to do with queing or durability. It's certainly possible that Rabbit has improved in the years since

If nothing else, I could teach you that zeromq has nothing to do with queing or durability. It's certainly possible that Rabbit has improved in the years since I used it, if it works for your use cases, great. But don't assume that everyone using a popular technology is doing so because of a fad or without understanding the tradeoffs.