I think we should educate our selfs about how and what to ask here and how to answer. SE Meta is the site where questions about how does Stack Exchange sites (like this one and all the others) are asked and answered. To this regard, your link in main SE Meta clearly says:
When someone goes on Stack Overflow, the question "answer" should actually contain an answer. Not just a bunch of directions towards the answer.
So we should:
- Edit to include the relevant information in the answer if it is already posted.
- Avoid answering with just a link to where the answer can be find.
On the other hand we should also avoid not crediting the source of our knowledge.