Part of me, the very jaded part of me, thinks it's likely that the yubtuber thread spam is partially active because the authors *know* it annoys people.
Like a few other topics I could mention. When folks are unwilling to contain their discussions to one or two pre-existing threads, and instead feel the need to make new ones constantly, it's because they want the visual clutter. The annoyance.
Titanmen didn't make threads because he really cared. He did it to be annoying.
As such, yeah we could try to up the signal to noise ratio, but that still just increases noise over all. It doesn't reduce it.
If communities (lol) could ever band together and make annoyance and trolling boring to the troll, the trolls would get bored and move away.
30 years of internet has more or less proven that this is impossible however.