Raphael, the post you've mentioned has already been removed but, judging by the title, it was not something that can't be answered by using Google or reading SAP Help.
There is no need to maintain "knowledge exchange" in multiple places. If an answer can be found in documentation, Help or should be part of basic training then that's where everyone should go to get that knowledge. In fact, it can be quite frustrating when ABAPers search SCN and find very old posts with all kinds of advice that was bad to begin with and is not even applicable these days. Instead just go directly to the source. Granted, SAP Help is not always great but at least it doesn't contain complete nonsense.