that's what I practice and am open about it. I hate those who say they are poly as an excuse after being caught cheating. Not because of the cheating itself, but because they lied to get with someone they knew won't want that. Therefore the cheated partner had no informed consent. And I'm not sure this is a mainstream view. but I consider informed consent as consent, and therefore no informed consent is rape. Someone who lies about who they are to have sex is a rapist, just using conman tricks instead of drugs or force. And should be seen by society as such.