And most likely go back to teaming next game :(
But if there's a chance they will heed the warning and never do it again, then it's worth warning them right? It's better in my opinion anyway.
What if you really didn't realise it was a punishable offence? Does that mean you get an instant ban? Seems way too harsh.
And to everyone saying 'They should have seen the warnings', what if they speak/read in a foreign language like French that Cubecraft hasn't added yet to it's language option thingymajigy?