There's no integrity in the loot system. Nothing feels earned. You may have "earned" an item after completing the raid in its entirety ten times, yet another could have it after a single cheese. Rewards aren't performance based, you simply have to complete an activity for a reward. For this reason it doesn't feel rewarding to complete it legitimately if you have already done it once or twice. The "rewards" (or "hand-outs") keep you coming back to the raid, and if you can get them in five minutes rather than an hour that's usually enough for people to take the cheese route. Simply, because of the current loot system, legitimately completing the activity not only doesn't feel rewarding; but even a waste of time when it has no effect on rewards.