In thisthis meta post there was an apparent agreement on that we should have questions tagged not only with the actual version of the relevant RDBMS (like postgresql-9.1) but the versionless tag (here postgresql) as well. I think we always had questions not conforming to this rule but recently these are so many that apparently noone has the time to clean them up. (Personally I do it on PostgreSQL related questions and others I edit anyway but there are many more.)
So I would welcome a feature which adds these versionless tags when they are not specified by the OP. I see there may be some cases when there are already five tags on the question (and quite possibly there are some other problems as well), but still: can we have such a feature?