Of course, if you choose to incorporate your own LLC (or C-corp or S-corp or whatever) there's always risk in that vs. hiring a professional to do it for you. I'm not really suggesting one approach or the other, but FWIW, I chose to incorporate our NC LLC myself by using one of those books and the stuff from the appropriate NC gov website.
But, also FWIW, if/when the day comes that we start trying to raise outside money or doing any complicated deals involving ownership/equity, we'll reincorporate as a Delaware C-corp, and I expect to hire a seasoned lawyer who specializes in that kind of thing, to take care of that.
I mean I don't try to do my own dentistry. And like others on HN I make fun of people who think they can program after doing a mail merge.
So why would I try to do my own legal and accounting stuff? Given the potential downsides, that's just crazy.
The chances are that once I knew more about it, I'd think it's crazy too, especially for the general case. I'm curious whether it is possible to reduce the difficulty of operating as a single person limited liability company to the same level of difficulty as operating as a sole-trader.
The limit of my complexity is occasionally emailing my accountant to ask whether to book things against me or the company.
The people I work for require me to be incorporated, so that pretty much settles that.
As for curiousity: again, I just ask the professionals. They are likely to give me a correct answer.
I do sometimes look things up myself, but there's always the nagging doubt that I've mistaken a technical term for its common meaning, or that I lack some key conceptual framework or whathaveyou.