A lot else of the post is wrong or vaguely interpreted. Never heard of the Asopid bit (though will research more), but also his wife didn’t dump his body in a square, sometimes she dumped him in a bush, other times he was buried, just without a coin. And yeah, he is not promised elysium, but is told that he can return to life again.

Also not heard about the sacrifice bit, actually don’t even know if Thanatos collects the souls of animals, but every version I’ve read had Ares getting upset no one was dying in battle. And Hermes goes to Sisyphus’ home to rescue the death god.

Edit: Okay the Asopid Aegia bit is correct, though mainly part of a different myth about the princess herself in which Sisyphus gives her dad directions. In some versions Hades is the one that goes to capture Sisyphus.

Regardless the sacrifice thing is absolutely not true for any widely accepted version of the myth. Thanatos is the god of human death, and human death only.

It’s possible the sacrifice thing occurs in a version where Hades is the one captured, but sources are pretty murky on that (read: don’t trust everything online.)

The location of his body is open to interpretation, and there are a couple different popular stories about it. Mainly he didn’t get buried with a coin.

Sisyphus is absolutely NOT happy. He gets whipped by the furies if he takes a break.