Overzealous and reputation-hungry moderators should be kept from placing unrelated "may already have an answer" banners within the first 24 hours of asking a question.
Placing such banners within minutes of asking a question chase away possible interesting respondents. The same holds true for "possible duplicate" comments.
Moreover, moderators seem to only skim questions for trigger words without carefully reading the subtle differences between a question and possible duplicate questions.
Here is an example: How can I get a list of all packages in a repository section from command line?