Name some things that only bitcoin can/should be used to purchase? I've been looking online at peoples experiences with crypto products on Ebay, and I found a thread where the OP was selling mining gear, and sees a lot of disputes/refund requests after two weeks of the gear being received. Obviously the buyers are just mining and looking to return, and Ebay have told him they will side with buyers in these cases..

So, what other things are best purchased with bitcoin due to it's irreversible nature?