This. I don't know the full story or any of this KDF stuff, but koronba saying to not talk about LcdDem and trying to get rid of his work is probably a big reason people still talk about it or him.
By prohibiting it, he cements it in peoples' minds, creates more mystery and false value around it.
It's psychology and economics shit. Scarcity creates value.
Companies use this principle all the time and create artificial scarcity to increase the perceived value and demand for their product.
The only outcome is to put attention on it and make it more valuable.
In a more personal sense, if some art touches me, and the artist tries to prohibit it and wipe away its existence, then I will just want to hold on to it tighter. When it affected me, it became a part of me, a precious experience that possibly even changed the course of my life.
You just can't expect someone to let go of that because you tell them to. If there's a risk of that affecting work to disappear, then there will just be more effort put into maintaining its existence.
Also just as a side note, while I played LcdDem a long time ago (and I don't think I was aware of all this stuff until after I had played it), I never looked into koronba's music, but now seeing this stuff got me to look it up and damn… funny enough, I immediately love it.
Anyway… The situation is quite unfortunate.