People grumbling that #Mastodon is slow at the moment... You just turned up with 1 million people in a tiny, rural village and you're complaining there's a queue to get into the only tearoom, which is run by gay pensioners Babs & Maureen as a retirement hobby on Mons-Weds. Relax!
#TwitterMigration

Having been here since 2016, I can tell you there is definitely no such thing as a consensus on usage of content warnings on the fediverse. It's a decentralized network that doesn't belong to any one party, so by definition there is no single culture on it. Different corners have different expectations and customs.