id say it's other stuff since most people refer to social content as kind:1 events but nostr's social content extends well beyond text notes. if you only count text, you're missing blogs, music, videos, live streams, group/community chats, etc.
for example, i am social all day long, chatting in a couple different Armada communities. i woke up to 70 messages to read this morning lol, but i'd consider Armada an other stuff app.