A $5.6B valuation means that Postman is about as valuable as Reddit ($6.4B). There might be an alternative simulated universe in which this makes sense, but it is not ours. Unfortunately, the market can stay irrational longer than I can stay solvent, so I won't short Postman if it will be listed sometime in the future, but damn, I would really like to do so.
Valuations are silly and comparing them apples-to-apples rarely makes that much sense. It's just some numbers on a paper, there's no real "value" there.
