Netorare is basically about causing pain to the reader by cuckolding someone, while Netori allows a person to enjoy the show of watching some hot thing being taken away from someone who doesn't deserve her by someone who's worthy of it her. The very nature of netorare means most of the time there's going to be a bad ending, most of the time, while netori at its core allows for a good ending, what gives?
Another thing, while aren't there more Netorare where the guy getting screwed over gets revenge on everyone who's wronged him, including on the girl who's been stolen from him when she starts to like it and completely enjoys the act of doing so, willingly betraying him after a while? Seriously, there should also be more stories where the guy actually does something about the cheating, like getting violent and suceeding to stopping it completely.
Another thing, while aren't there more Netorare where the guy getting screwed over gets revenge on everyone who's wronged him, including on the girl who's been stolen from him when she starts to like it and completely enjoys the act of doing so, willingly betraying him after a while? Seriously, there should also be more stories where the guy actually does something about the cheating, like getting violent and suceeding to stopping it completely.