Consider the web in 1994

Yes, I'm sure they're useful for stuff like code, and other fields where it's often required to produce volumes of material that fit to already established patterns in the field, and tailor parts of them to the current task. IF you get the AI to produce the material for an expert to review, correct, and tweak; then you can save the time of that expert having to do the initial trawl and production. Sure, that's a time save.

It's a big IF though. Cause some people who are not experts will use it to produce reams of material that /look plausible/. Worse, people who are experts but are a bit lazy (or are doing their "homework" a bit too late) may /fail/ to do the review, correct and tweak step and instead present the AI generated bullshit as the work of their own expertise! (The article I linked to being a case in point - how much money did the defendant have to expend on legal fees to prove it was bullshit! Had they not had those resources, they may have had to fold and settle or lost the case - and then been on the hook for the costs!).

So yes, useful. With caveats. And the problem is some will be ignorant of or just ignore the caveats - like in the article!