I think it's a bit of an overstatement to say tags are "flawed". Tags are, well, simply just tags, and not meant as a proper taxonomy system. They are lightwe

I think it's a bit of an overstatement to say tags are "flawed". Tags are, well, simply just tags, and not meant as a proper taxonomy system. They are lightweight labeling and metadata and I think they serve that purpose relatively well in the contexts they work well in. The question that isn't being asked perhaps, is should tags be used or should a fixed, organized and meaningful taxonomy of categories be used instead (or in addition).