Pretty often my answer refers to other answers on this site, like:
- Do this, as described in that question
- Do something else
- Consider using this answer for finish.
You know, step-by-step solutions where some steps was already evaluated.
- Link to original question & answer, so users who know how to do it don't need to scroll and users who don't know can click and read? This way, if there will ever be a better solution for specific step, reader of my answer will get it, too.
- Copy a part of original answer into my own, and leave "taken from" link? This way if original question will get deleted my answer will still be complete, but on the other hand it may get outdated if original one will get updated or will get proven or rendered false by future events.
What's the proper way?
To make it bold - this is not about external links.