Calling other posters "utter bitches" is hardly feminist.
It's an objective fact that Kate altered another student's showcase because she wanted to walk the catwalk with her underwear on display in a see-through minidress rather than walk the catwalk wearing the ankle-length skirt and jumper she'd been given.
It's perfectly reasonable to speculate on Kate's reasons for drastically altering her costume, as this was something Kate did on a public platform. If any celeb did the same, people would question why.
What other possible reason, other than trying to catch William's attention, did she have for removing part of the outfit she'd been given and walking down the catwalk in visible underwear instead? The designer is on record (direct quote) as saying, "Kate must have really wanted that prince!" So the person most closely involved believes that's the reason.
The only person using the word "slut" is you. That word is not part of my vocabulary.
The only thing I'm judging Kate for is damaging another student's work (not damaging as in physically damaging). If you're paid to model then you wear what you're given. You don't just make major changes to a designer's outfit and to their vision because you want to.
As for revealing her underwear at royal events, I've never commented on that. You're the only person to have mentioned it! But it is objective fact that she's worn outfits that put her underwear on display numerous times. Once or twice is likely an accident (Diana had a similar accident with the sun shining through a skirt) but it's happened enough times that she obviously doesn't care about people seeing her pants. Coupled with all the reports from fellow students about her love of mooning, it's pretty clear that she has an exhibitionist streak. And so what? What's wrong with that? Personally I like it, it makes her more interesting. The only people using the word "slut" to describe having an exhibitionist streak are her fans, who seem determined to project a shy and modest persona at all costs. Why do Kate fans believe women have to be shy and modest?