Re:terrible idea (Score 1)

You'll get pages that becomes invalid with time despite they were valid before. That sounds like a very stupid idea.

Until you name the revision by dates, which is basically the same thing as giving version numbers...

Actually, to validate HTML 5, one would declare their doctype as: As opposed to previous versions where you would declare it as: As you can see, much shorter, easier to remember, and not dependent on future version, whether they contain numbers in the name or not.