TreatI firmly believe in accessible software. That's software for as many people as possible. In particular, software that doesn't kick people to the curb for having a disability.
When software is accessible, all users benefit.
An answer that gives a solution with fundamental accessibility problems is not a very good answer. That is, the answers written in such a way that anyone following the answer will produce inaccessible software.
If we want to get technical, such an answer might provide clickable spans, which have a number of accessibility problems, the biggest of which is that keyboard users cannot interact with them. (Keyboard users include the visually impaired who use screen readers and even power users who may find it easier on their hands to use a keyboard.) But there are more problems — a clickable span may look like a link but it doesn't behave like one, so no right clicking to open it in a new tab, or do anything like that.
Yes, accessibility can be hard, but these are supposed to be sites for expert answers.
Handling these answers is the same as you would any other badnot good answer:
- Downvote answers that promote poor accessibility (e.g. clickable spans, which for one can't be accessed with a keyboard)!
- For maximum benefit, you should leave a comment explaining why
- Upvote correct, accessible answers
- Write your own better answer if you can. Explain why it's better.
I looked back at an answer I downvoted last year for accessibility problems, and some of those techniques above allowed a more accessible answer to reach the top voted spot. The new trending option may also help better answers get more visibility.
Typically such answers are not flagged, and usually banners are not edited into them mentioning their problems.
For questions, if the accessibility issue isn't at the core of what it's asking, you can leave a comment pointing out what's wrong. Downvote if you see fit — or not. Having highly visible questions about "how to do [bad thing]" are valuable when they have answers that say "don't" and offer a better alternative.