Yeah pretty much lol
To me hardcore is someone who gets their buffs and consumes and gets bis gear and sims if their gear drop is an upgrade or not and does content to be bis in whatever they do, like a pvper doing maw dailies to put sockets on his pvp gear is hardcore to me. Someone rerolling fotm is hardcore to me, someone making alts to farm a ressource or an item is hardcore, etc
There will never be a set definition