Not envious at all at people who find Dream  beauties out in the wild :o
Great finds!

I love fading pink hair when it's unfaded but most of the ponies that have it also look great in white hair.
My favorite out of those is Tornado.  I think white hair suits him better

Other than that a pony I've only ever seen once in that state :  An evenly regrinded TE Party Time.
She was the most neon orange pony I've ever laid eyes on and she sure screamed PARTY TIME!!!!!

No, unless they need to wear something at that specific time.
I have long haired cats and sometimes they need a shave (their fur grows uncontrollably) and if it would happen that they would be newly shaved and it would be very cold (say if our generators stopped working )they might get something to keep them warm.
Odds are that I would just spend my days under a blanket with them so that they wouldn't need clothes anyway xD

I have begun, but am starting with clothes so am faaaaaaaaaar away from collection which would be the last miscellaneous / sentimental thing to go through.

I think that what you do, with putting it away in a box for now is good. The Kondo-thing doesn't really allow for collections so I guess those are excluded from the de-cluttering business. At the same time, if you don't have room to display your collections and don't plan to move or give them more space maybe that speaks for itself regarding the pieces not on display

I can't add to this thread much because Taffeta already phrased it so well.

Out in "the wild" I'll still buy a pony with hair cuts if it's cheap but other than that it has lost too much value and is more or less custom bait.
Other than that - these are ~35 year old collectables (speaking of g1) and same as I wouldn't scrape off a pattern I disliked from a Ming vase, or cut "more modern holes" into authentic vintage clothes - I won't devalue a pony by cutting it's hair. I will do everything in my power to save it.

I received a MB Lightning with something that had tangled his hair and tail into a sticky oily mess. His owner had given up and said if I didn't take him (for free + postage) she'd just toss him in the garbage.
It took me three days of hard work but I got it out. He's now in my herd.

I am still a believer that what you own is yours and you are technically free to do whatever you please with it.
And I too prefer ponies off the cards (except for childhood ponies - those I want MIP) but I wouldn't decard a pony unless the card was harming the pony [e.g. mold or something else that contaminates the pony].

Newer generations such as g3 and onwards I have very little to none attachment to and I couldn't care less if people cut their hair or limbs off for various projects.
That might change in 15 years

I can get them for you here in Sweden but they are expensive (190kr ~$20 each) and shipping is around $20 too.

Wow, those are some neat finds!!
Very cute braids too

Congrautlations on the bargain!