I love helping people, I mean why not? What's the harm in taking some time (if you have it) and helping someone. If I come across a team at the entrance to the vault of glass I'll stop what I'm doing to help them out. Sure I've done the weekly nightfall or the vault for the week and got my rewards already. But I'll be darned if I say no to one of my friends in need. Or I'll post on an LFG site asking if anyone needs an extra person. I can understand if you don't have the time to do a VOG run, but if you do have time then what's the harm? Just saying.