When I first heard about this project on Twitter not all that many days ago, my initial reaction was: “well, at least it’s within the consensus rules, and there’s nothing anyone can do about it anyway, so let them have their fun and it will go away when the fad dies”. I have seen this reaction quite a bit, so I don’t think I was the only one. However, after thinking about it for a short while—and really, it should have been obvious from the start—this is not a very logical response. Inscriptions are an exploitation of a vulnerability in Bitcoin Core, and an attack on the Bitcoin network. I wanted to go over all of the comments and criticisms I’ve seen floating around the past few days in this short post. But first: what are we even talking about?