rather, ipfs sounds just like bittorrent

It has a unique identifier of data (their main feature), a naming system and some other features, that makes it quite different than bittorrent (as far as two p2p sharing data networks can be different, obviously).

Right, but one works and has widespread adoption. The other does not. And they certainly cover similar ground.

I’ve always wanted to download an ipfs-node and run it on my pc in the background but I’m worried if it will wear down my hard drives?