I agree. I've done more than a few of these to notice a few things. But I've yet to ever see one dismember except under extraordinary handling and re-handling (e.g. extensive reinsertion into non-confirming coil sizes, repeated torchings along with that). Really would love to know the circumstances. I know what I had to do. So curious. The stuff's practically indestructible. And it begs the question...
what is that material?
Dry burning if the taste doesn't bother you (residual refractory traces are often released, harmless but detectable) is perfectly adequate. Pigments and other large solids get pushed out to the edges of the wick. They build up on the surface. It continues to flow more than adequately but I realize the appearance is not aesthetically pleasing to some. Pigments start to extrude and
agglomerate at the surface of the weave and after repeated dry burns and/or torching become like interwoven rock strands that won't torch out.
If the look bothers I'd say, rewick. It's a minimal cost in a small dripper. The buildup does progressively affect heat transfer somewhat at the location of accumulation though just like the same buildup on the coil surface.
I migrate or rotate the wick around in some atty's to avoid this. However, letting the wick saturate in cool water for a time then transfer to hot water (I use two small recycled 3"candle cups for this) helps first dilute then expel impregnated
juice solids
before they're burned into the wick. So quick washes may not be that beneficial but
soakings like this can help prolong the best flow rate and flavor output when followed by torching for any remainder. In fact this works so well with most juices you don't need to dry burn at all. Dry burning can actually harden the residues even more. A light overall torching may suffice if that.
End of the day, you're not going to avoid the eventual buildup of solids to some degree in any wick. And you can't do some of the stuff I'm suggesting in any other material with as efficient and predictably good outcome.
Wish I could just dry burn. LOL
Good luck blu.