Concierge Bashing? I think it's more the "We paid for concierge so were entitled" attitude that people get upset with. You wanna cruise concierge great, If you feel the perks are worth the price thats great too. In the end those in concierge share the boat with all the other cruisers, you don't get to go to the front of the line at character meets and greets, you don't have a separate dining room from the rest of the guests, All guests have the same access to amenities, shows, pools, dining facilities, bars, etc.... on board save for the perks like the the concierge lounge and sundeck.
Those of you that sail in concierge I hope you have a wonderful cruise just don't look at those that do not as lesser cruisers.