I'm not sure what your point is either. Mine was "oh, there's a website now; they must have been reviewing old issues to prepare for the launch." There is no "official" style guide, you're 100% right, but I'm not sure what that has to do with this.
It's actually an interesting thread. My take would have been to use comma when it's something we intend to modify, no comma when it's not. So intent is explicit.
