You're (your mentality is) one of the problems they are going against. Why would you call it cheating if both partners knew about it and agreed to it? You think

You're (your mentality is) one of the problems they are going against. Why would you call it cheating if both partners knew about it and agreed to it? You think it's impossible, or just "bad" in some sense? Many people here say things that are purely their belief about how the relationship they are in should function. It's ok, it just means that your not a target of this service. The problem starts when you stigmatize people who are and who would use it. You can't say that people are cheating on each other if all interested parties consent - but you did it anyway.