Cheating is being dishonest with your partner.

Not necessarily. Sometimes not saying something is the best for your partner, thus is being honest with yourself. You argue against monogamy in favor of freedom, yet then you try to argue that I have to be dishonest with myself to lock myself into a jail having to tell another person everything I am doing and thinking. Hopefully you see the logical inconsistency in your stance. It depends on your perspective and goals. For example, you might wish for your wife to remain happy and productive rearing her (your) kids and be free of stress. You might also be out there fulfilling your evolutionary strategy at the same time impregnating some other females. It depends. But can you be sure you can accomplish it. Each person will have to weigh their options and realistic abilities.

What concerns me is a blog trying to shame everyone into being a swinger. Not everyone needs to have the same strategy and perspective in life.

It seems a non-sequitor promulgated here is that is okay to fall into a life of shared jail of addictive decadence for as long as both partners tell each other everything and convert both of themselves into addicts together. I don't personally find that to be optimum solution to anything. But to each his own.