There’s a dev-time vs. reliability debate here, I think. I don’t think it’s worth worrying about most of the time but I would approve a PR if someone did do the work.
When scripting things that probably shouldn’t be scripted but I care about them (like covid stuff), I’ll take the time to find a good browser user agent. I would be worried about bot-prevention measures catching a non-standard user agent and taking it down. Or even worse, someone else made a terrible script posting dos-level traffic and mine gets banned along with it...
The next level is using a custom but specific-to-the-script user agent. I do this whenever I also own the backend, to make tracking down logs way easier.
For everything else, I use the default! In this case, taking the extra time to think of an appropriate user agent isn’t helpful to the project. Sometimes, I might still send up Star Wars references for fun.
