I agree with the fact that Rubik's is protecting their image from some knock offs, and that DaYan (and other companies if need be) are complying with it, but instead of just a new color scheme or selling their stickers, why don't they just try to get permission from Seven Towns? And if Rubik's really wants to get to the speed-cubers of the world too, then they need to make speed-cubes? Five years working on a speed cube design? Hope it's worth that time. And that article about speed cubing and how Rubik's isn't used in it, sounds like it was written by someone who's heard the word speed-cube once.
Of course we don't use Rubik's, they do realize how bad their cubes are when it comes to speed right? Yes, like all people I started with their brands, smoothing the inside, lubing it, I even took the rivets out and managed to get a good screw and spring thing on mine, but in the end, they suck. And they say that we're sacrificing durability for speed? I bought a Rubik's brand 3x3 a few months ago (for modding purposes) and around the same time I got a new DaYan Zhanchi, as I wanted a stickered one, and I used the Rubik's brand, so rarely, it wasn't even existent, when I was really cubing, just when I was working on my schematics for the modding stuff I'm working on, so it just sat on their little display thing. It's practically useless now, from non-usage for a few months, it doesn't even turn anymore, it's a paperweight, at it's finest moment. But my ZhanChi, which I didn't use as often either, due to having a better main, still turns perfectly, and even the stickers that came with it outlasted the others, which were peeling in a week.
So just try to compete with the speed-cube shops, not inhibit their sales, you're already the number one most bought item in the world Rubik's Brand Cube, you're still selling other stuff, and their also knocking off a few people themselves, so yeah.