I solo'd Crota and got shit for it. Then I cheesed with some friends and received the gear I have now. I'm going to cheese again on Tuesday and become a level 32. As long as I know I can stomp him on my own it doesn't bother me that I cheese it. I think of it as traveling to a town and visiting it and then being able to fast travel after the fact. Now if you've never beaten Crota before I feel bad for you when the hard raid comes around