Legacy Mode: The Who

My primary concern, Jerome, is not with the system itself, it is first and foremost a concern that those that Jagex are looking to appeal to are primarily those that are unsatisfiable. They never stop taking.

Jagex is looking to appeal to as many people as possible, some of which will be the type you describe. That's not reason enough to scrap the update. If Legacy Mode brings in more players or gives them something they would like to have, then it's good for the game. Your concerns about intangible harm to the community don't hold a candle to the actual benefits of adding a feature that people want and bringing more people to the game.

Once a lot of these people have Legacy, do you really think they'll stop there? Do you really think they'll learn to accept those that choose to pk with EOC mechanics?

That's an entirely different problem that already exists in the pking community, which you can observe if you try to pk someone with a protection prayer, eat food to stay at full health, or teleport when you're about to lose. Those aren't real rules, they're just unwritten rules someone made up, and it's my opinion that anyone who insists you do it their way can go jump in a lake. But that's still not enough to throw an otherwise good update out the window.