Yeah....I really don't get that. I never have.
My clean tone is just the neck volume on about 3. Any time I've used a treble bleed, all the volume control seems to do is cut bass and make the guitar sound thin and weak. And, I'm often turning tone controls down (though not for that pure clean neck tone). And I use 20'+ "normal" (not low-cap) cables because shorter ones are too bright. It's actually pretty rare that I play with either volume on 10. There's this upper-mid (around 2k) thing that happens on every guitar with the volume on 10 that I just don't like. I normally top out at around 8 on the neck and 9 on the bridge (after some mods to make bridges usable for me).
There's just something about how I play that puts in way too much high end....always has been. I end up jumping through hoops to dump high end to ground. A few months ago, I ended up soldering a 47k resistor in parallel with my bridge tone pot (so, essentially, it won't go over about 5 on a standard one, along with a different taper, always 60s wiring because 50s wiring doesn't do enough above like 2), and I immediately started actually liking them. Before that, I don't think I ever turned a bridge tone control over about 2.5 and mostly didn't use them.
If I record my guitar tone (on pretty much any amp I set up, pretty much however I record) and compare it to isolated guitar tracks that I really love....mine tend a little loud below 200Hz and pretty soft over 4k or so. But....that works out well....a tube screamer (with the tone control all the way down) actually still adds high-end and brings everything roughly in-line with all of the classic blues/rock lead tones I really love.
It really is just something about how I play that squeezes all the high-end out of a guitar. Les Paul bridge pickups sound like tele twang until they're pretty gained up with the tone down (with my mods, around 3-5, or about 1-2 on a normal one unless you specifically want it super-bright). And, as far as I'm concerned, Strats might as well only have a neck pickup; the others are too bright even with the tone turned way down....at which point they go from too-bright to muddy basically all at once. Conversely, I honestly don't understand how people complain about neck pickups being muddy. Guitars just don't get muddy unless you go way out of your way to set the amp up to do it. Outside of things like turning bass up and treble all the way down, it just doesn't happen for me.
I really don't get what's so different about how I play, but I've at least found what I like.
I'm probably not a model to be followed. But, yeah...no treble bleeds for me. Ever.