I was digging through some lovely unicorn paraphernalia, when I came across a comment which is now incorrect. I attempted flagging it as 'obsolete', but I got this error message:
Doesn't Community know that links can sometimes fix themselves after a while? If not, I think we need to teach him, don't you?
It turns out that it's not necessarily a problem with flagging a comment by the Community user, but it is instead a problem with the link validator.
This link, for example, will work if I paste it into my browser's URL, but not if I use it as an inline image:
Testing inline below: inline test http://unicorn.%C3%BC-wie-geek.de/0.2/128/4f7c0c43b0fb87f905d369d42d2667ac.png
However, this link (it doesn't work in the browser), while it works for embedding images (as you can see in the post I linked) gets flagged as 'invalid' by community:
(cannot post inlining attempt, but see this revision: https://meta.stackoverflow.com/revisions/37565/2)
And this link, which works in the browser, also doesn't work for inlining images:
inline test http://unicorn.%C3%BC-wie-geek.de/0.2/128/4f7c0c43b0fb87f905d369d42d2667ac.png
Overall, pretty bugged up stuff here, don't you think?