Alright, I don't think we've gotten out of hand yet but let's step back for a second before things escalate.
if I knew how I would report you.
If you need to in the future, while you're logged in there's a little "three vertical dots" icon on the lower left of each post, and that opens a dropdown menu with a "Flag this post for Moderation" message. Certainly feel free to use this any time, whether there's a serious problem, or even if things are just getting mildly heated, like they are here. If there's something that needs my immediate attention, you'll probably get a faster response from me via Twitter (@TheManaDrain or @tmdBrassMan).
Moderator hat off and vintage player hat on:
I don't think anyone would disagree that there are both strong parallels and key differences between Mind's Desire and Paradoxical Outcome. There's enough gray area there that there's some room for argument on both sides, but it might help if those arguments are more clearly spelled out (which similarities or differences cause you to come to the conclusion you've come to?).
I think it might be good to remember that two cards being similar hasn't always historically been a reason (WotC has used) to restrict something. While Windfall seems to be on the list because of it's association with Wheel of Fortune, you have the case of Ponder vs Preordain and Sphere of Resistance vs Thorn of Amethyst, both of which seem to be examples of "2 of this card is too few and 8 of this card is too many.
Pragmatically speaking, "will WotC restrict a card" and "why did WotC make a particular restriction decsion about this card" and "should this restriction decision about this card have been made" are qualitatively different questions. New cards don't get restricted unless they cause problems, similarity to existing cards on the list has just never been a catalyst for restriction, just a post-rationalization made after a format imbalance has already appeared.
Rational objective neutral hat off entirely: (I feel like I need to post in different colors or fonts or something)
Mind's Desire feels like a dangerous unrestriction to me, even if I agree that there are many ways in which Paradoxical Outcome is a better card. Desire is interesting in that it's never been unrestricted in Vintage. I think it's the only card for which that's true (correct me if I'm mistaken please) ... we've never seen a Vintage with 4 Desires. It's very possibly harmless, but it feels like a high risk/low reward move to me. Of course as always, that depends on what you want out of the format, which there is no consensus on.