[jerf]

If you need it here or there, no. I've got a use case where I need a single locked thread for a particular syscall's functionality. It's not like it leaks out into the rest of the program and everything else has to change to accomodate it.

If you need it pervasively, Go may not be the correct choice. Then again, the list of languages that is not a correct choice in that case is quite long. That's a minority case. An important one, but a minority one.