There are people who have been working in Go for years, successfully, but who don't post comments with the same frequency and dogged determination as the middlebrow dismissers.

Both Python and Go are fine. They both have their strengths and weaknesses. I personally wouldn't write a web app in Go (at least, anything beyond the most basic admin interface). I also personally wouldn't write a very large and complex Python system given the huge unit testing burden necessary to ensure safe refactoring down the road.

The biggest reason I like Go is because it makes it really hard for engineers to create huge, complex abstractions. Engineers (and especially less experienced engineers) just love them some abstractions. In my experience, most abstractions aren't justifiable. The net effect is that it usually makes their software harder to learn, harder to debug, inflexible (ironically), and late for whatever deadline they were supposed to hit. You can't write Java enterprise software in Go, and I really appreciate that.