IIRC all text and posts are cached on each server that is federated with one another, while images are just referenced and loaded from the server they were posted on, so if you had an image post on your server, anytime someone wants to load that image it would hit your server
IIRC all text and posts are cached on each server that is federated with one another, while images are just referenced and loaded from the server they were posted on, so if you had an image post on your server, anytime someone wants to load that image it would hit your server