I think you are missing the point, which is that, if you feel a post should be moderated, you should bring that to the attention of the moderators. They are likely to disagree with you in at least some cases, but really, even in a low-traffic site such as this one, not everything can be noticed by the moderators themselves. Apply your own standards to the use of the Report button, and let them see if they agree with you.
Mind you, the job of the moderators is not
to discard threads they feel aren't up to the standards of the site; their job is to discard or or moderate threads or posts containing material completely inappropriate to the site (spam and other forms of advertisements, hostile or inflammatory posts, obvious trolling, etc.). You are asking them to take on an editorial role that does not fit the moderators' place in an open forum.
While I agree that there are really far too many posts and threads which amount to instances of help vampirism
, that is the inevitable consequence of an open forum on a technical subject. The real solution is not moderation, but the development of a culture that discourages Help Vampires from their unwanted behavior without discouraging their interest in the subject. In essence, we need to be teaching the 'gimme gimmes' to be more self-reliant, which isn't easy, especially over a (mainly) text-only forum. It is a hard, narrow path, and few fora manage to walk it, but that really is the best answer anyone can give.