Having it in the Wiki could turn up irrelevent results. If someone lists a project with the word "invalid" used extensively, or "sorting", it could be misleading to a certain extent and that would likely be the first result shown instead of the second or third. The knowledgebase should be separate for this reason. The manual does cover some things, but it's sometimes too vague. A knowledgebase system would allow more in-depth troubleshooting, list possible causes and how to work around it or fix it. I do agree with having the version and edition the issue applies to would be very useful. The case of spaces in a file name applies to all versions and editions (as far as I now that is). Unlike the tips and tricks section which are nontechnical issues, the knowledgebase should cover only technical issues.