That would cause every client to automatically connect to those platforms to pull data which raises privacy concerns because it leaks your IP. Externally embedded images do this too, but most people upload them to their instance.
Do it server side, like they already do for articles and links.
Would surely overload servers too, as an infinite amount of instances make tons of requests all at once at random times. Oof.
This needs to be fixed. For example by adding a random waiting time before making the request.
Yeah. Its just not a good thing to add to the base UI. If someone wants to add this to any of the many lemmy clients they can do it easily, but its a very bloated thing to do. It would probably require loading lots of external javascript every time you open a post.
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