We need meta tags to more easily describe our preferences.
Current mechanism (regular expressions) is not sufficient because related tags (semantic issue) don't have to have related names (syntax issue).
Problems that would be solved by meta tags;
(...) If someone has set up their filter for say vs* and retag all vs2010 to visualstudio2010, they may lose their desired highlighting
Nathan Koop on Batch retagging? proposal.
Meta tag is a collection of normal tags and multi tags like c++*. In every context a normal tag can be used meta tag can be used as well. Every time an operation on meta tag is being performed it gets replaced with all normal tags it denotes.