That was me ;) Atom's great until you save and goimports locks up the whole UI. Think that is the protobuf interface used by the client and server in our tracing tool, so handy having them all open! https://github.com/mondough/phosphor
I know, I used atom for a couple months until I found VSCode, it's lightning fast compared to Atom and has a great go plugin I contributed to a couple of times :)
Oh, and goimports/goreturns don't lock anything, and the editor even highlights their changes :)
I've found Visual Studio Code and this plugin[0] to be really performant