A very controversial spell

[Drachasor]

But remember spells don't imply anything. They tell you what they do. If the mechanic doesn't say it does something, it doesn't. Since we are dismissing any argument based on implication, the spell does not change the target's personality since it does not say it does. Thus inclinations can not change as they are part of the personality.

Or rather, it doesn't change their personality more than it says it does.

If the Evil Villain collected Wingback Chairs, then after the change he'll still collect them. If he loved to cook, he'll still love to cook. If he liked sarcastically mocking people, then he probably still does that. Etc, etc.

It's arguable that if he loved to fry orphans, then he doesn't like that anymore. Some changes are to be expected.

Okay show of hands right now people. Is there a single person on this entire forum who doesn't think diplomacy is borked? I defy any/all of you to defend it as a well written, and not all ridiculously badly written mechanic.

Sure. But I don't think that means that convincing arguments are the same as brainwashing. And while in 3.5 Diplomacy might have elements of this from an outside perspective, that doesn't mean that's how it works within the game either.