On my hobby projects I run stuff in screen, I haven't had a problem and my server uptime is currently above 200 days. Is it being used? Something like 1,000 concurrent users for most of the day, so yes.
I regarded this as cowboy, but as it worked for me I haven't needed to re-visit it.
It is cowboy, but there is a time and place for that. If you did this in a large organization, you'd be putting the team at risk. Since it is just you, well, do what you find prudent.
I regarded this as cowboy, but as it worked for me I haven't needed to re-visit it.