How can I convert a stack trace to a string?. Its a link-only
answer, which is a non-no on Stack Overflow.
Ah, I see the problem.
That answer has 387 upvotes, is an accepted answer, and has been around 5 years (and has 15 comments).
The answer is argued to be "link only" (or not, depending on who you talk to), but arguments aside - no mod is going to close such an answer because of the upvotes/age/accepted status.
It has helped 387 people, over 5 years, which is a fair bit.
Also, the link is to apache.org, who are not likely going to be shutting down shop any time soon.
And while they could change the file structure or move content around, leaving the link going to a 404, it's unlikely.
In this case, you should just edit the answer and take the text from the link and quote it under the link. It doesn't appear to be much text.
Given the grey area, I don't disagree with your feature request. Because what constitutes a link-only answer is often debated, so it's sometimes likely unfair to get a "black mark" for flagging as such.
However, even if your feature would be useful and arguably correct to use on occasions, you have to consider all the work required to make it happen only resolves a rare issue, such as the one you encountered.
It's not really worth it imo.