Do you think it's a good way to make everyone you love hate you? You might do something terrible to them. Not enough to hurt them, but enough to make them hate you immensely. It may be heartbreaking that the people you love despise you, but is it worth it to know that their grief is greatly diminished after you die?
If it helps with your peace of mind and makes you more resolved, then I see no problem with it.
I have also felt this way, and in the event my recovery efforts fail and I decide to CTB, I have filed away the information I need to break the people who would be most strongly affected by my passing.
However, I have also reconciled myself with the knowledge that I would not be doing this for their own good. I don't think it would help them grieve less, but would temper the pain. They would spit on my grave if done correctly, but they'd still be weeping over it as well.
In short, if I had to get people to hate me first, I would be doing it for spite's sake, not for their own benefit. It's a choice I'd make if whatever drove me to finally CTB also meant I wouldn't care about the emotional collateral damage. If you can do it with that motivation in mind, it becomes much easier.
All of that said, I think it's good that you're tempering the impulse, because not caring about collateral damage is also how we get a non-zero number of mass shooters. Keep physical harm to oneself.