Meta's exist because they optimize the resources available on the map. Not playing the meta is deliberately inefficient.
Lets explain it a different way:
You can hop your way through a relay race, but you will move slower than the people trying to run and that could cost both you and your teammates to lose. Even if you become the best hopper in the world, you are going to lose to an equally skilled runner because hopping is less efficient. Your only hope is that you opponents will be so taken aback by you hopping that they trip over their own feet in confusion.
Playing off meta is the same concept.
Can it be fun? Absolutely!!! Should you waste 4 stranger's time to fill a potential ego boost for yourself? I guess that depends on how selfish you are.