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Imgur links suck
(kbin.social)
This magazine is dedicated to discussions on the federated social networking ecosystem, which includes decentralized and open-source social media platforms. Whether you are a user, developer, or simply interested in the concept of decentralized social media, this is the place for you. Here you can share your knowledge, ask questions, and engage in discussions on topics such as the benefits and challenges of decentralized social media, new and existing federated platforms, and more. From the latest developments and trends to ethical considerations and the future of federated social media, this category covers a wide range of topics related to the Fediverse.
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
Not strictly true. Mastodon, pixelfed, KBin all cache images.