Some forums (e.g. MetaFilter) have rules against self-promotion. The main reason is that the authors are not in the best position to judge whether their own wo

Some forums (e.g. MetaFilter) have rules against self-promotion. The main reason is that the authors are not in the best position to judge whether their own work is interesting or relevant. Of course, MetaFilter doesn't use HN/Digg/Reddit-style voting to filter items after they're submitted, so it relies much more on contributors' judgement.