@Greenfox
I said "sell". Not read, but sell.
For an instance, would you pay money to access 9gag? imgur? How about the sub-reddit of /r/funny? or /r/aww?
There's a big difference between paying actual money and getting trash for free. And the fact that these things, surely, sell -- is simply out of this world.
Also, I have to say, I have no idea what ye were trying to say about Overlord. It's one of the few instances of an actually proper isekai / game-world, which managed to produce an actual story rather than be a completely aimless disaster, like most isekai stories (i.e: Deathmarch, Kuma, etc). They certainly cannot just "take over the world", since they have no evidence that there is no-one on their level. That is pretty much the basis of the entire plot of the story.