Ahh finally someone has said it. Unfortunately I can't seem to voice this opinion without getting the critique of you're just not smart enough to get it.

While I like the language, threads in Go are not any easier than any other language (which is to say, most devs can't use them correctly, and your program will have bugs), and suffer from a ton of ergonomic issues, like being hard to keep track of, difficult(ish) cancellation(how do you cancel a big synchronous I/O operation), and channels suffer from backpressure related hard-to-debug issues.