Agreed - there are no rules. To quote Joe Meek - "if it sounds right, it is right".
I'm just offering what I think is the most valuable mixing tip I learned. i.e. turn your tracks down.
I still disagree though

- if you can't get a reasonable mix without a limiter, then there's something wrong with your mix.
It's like making a good Margherita - if you put loads of Tequila in, you'll need loads of Triple Sec & loads of Lime Juice. Then you'll need a pint glass to drink it out of.
I'm not necessarily disagreeing with a pint of Margherita though...