Morality

I'll start by saying this: I would not be a great player on Survivor. Sure, I could probably deal with all the negatives of being a castaway, but what would get me is the connections I'd make with the other people. Most people are social, and when socialization occurs, connections are made. Those connection are important to me, important to my philosophy of being successful in life. In my opinion, if one can make and honor genuine connections between themselves, others, and their environment around them, they can be called successful.

But enough of that. To the point:
Yes, I do believe real friendships can be made on Survivor. I believe this because I've seen it before, and I'm seeing it now. Simple as that. As for voting friends off, that depends on the individual doing the voting. If it were me, I would have a very difficult time voting off anyone I connected with. However, in Russell's case, it seems as though his priority for voting is to vote off those who pose a threat to his position in the game.
Just like honoring connections made with others, promises made to others should, in my opinion, be very important to follow through with. Breaking a promise to get oneself further in the game is not justified. At least, I don't think so. But, that's just my opinion. There are other justifiable reasons to break a promise, though.
Mull that over, reader. That is, if anyone will really read this.