I often find that the better things are the more comfortable people are complaining. The danger is when people don't complain directly to you.
Plenty of people complain. They don't intend for you to solve their problems. They don't want to hear themselves talk. It is, actually, a form of prayer. If anything, you should complain with them.
And lets not forget that sometimes complaining is fun. For some. Granted it is not fun to listen to, but I suggest that you are paid to listen to complaints.
I have been complaining about me to me. I have been complaining about a lot of things to a lot of people. I'm tired of my complaining, and then
Salt gives me a new way to look at complaints. He's writing for persons in the God business--clerics of all stripes--but it applies to anyone, really.