We knew. The situation is the opposite-- external users did not understand the interface and constantly posted things that were meant to be private onto the public feed.

That issue exists because of the community that spawned on top of what was built just to be a utility. Not the people using it for its original intended purpose.

You got downvoted, but anyone who's used Imgur within the past decade or so has to have seen indications of this. I remember around 2016 when I went to upload some photos for a Reddit post, I found the two different profiles (old-style and new-style) confusing. I could post something private on the old profile or the new one, but if I wanted to bring a post from the old one to the new one, it would get set to public, and also re-post it with a new timestamp... things like that.

Once Imgur stopped being a dedicated image hosting service, you had to go out of your way to lock down your posts if you wanted to use it as a dedicated image hosting service. Which I can see being confusing for both sides of the party.

Imgur was a simple image host for forums and Reddit long before there was anything resembling a feed or even “users”. The interface was an upload button that gave you a URL that nobody else would have unless you shared it or someone guessed.

It was plumbing. And then a community formed inside it and wondered why things kept randomly showing up from above.

It’s actually pretty amusing and you sort of proved my point.