stabbylootStabby, with all due respect, what you don't get is that there is absolutely nothing stopping people from running different class combinations. The reason 2 scouts 2 soldiers demo med is the meta isn't because of rigidity or being forced into it, it's because that's genuinely the most effective.There absolutely is plenty stopping people from running different class combinations.
Feel free to play spy all the time in 6s, but don't be surprised when your team loses every game... even if there were limits of 1 per class.
I was on a CEVO team that ran fulltime pyro/heavy/spy/scout/demo/medic...and it worked--very well even, we didn't lose a round. Problem was: people got really really angry. Nasty forum posts, accusations of "trolling", and I'm not sure a single team we played in neither scrims nor matches stuck around till the end; they just quit. We literally couldn't play, despite (or because) the experimental composition was effective.
Did you ever actually come up against good players?