That's stupid, Yogscast are great. The only reason I can think of disliking them is that they spam uploads. They've started to move away from Minecraft a bit now and they've started doing other stuff like anno and dead island. With all these new games they're commentating on they're uploading like 2 or 3 a day, these all go to the top of the most viewed list and stay there for a few days. This makes it harder to find other vids.
I only like their Minecraft videos, so it's irritating that they do less Minecraft. Other than that though, they aren't anything less than good.