On: How Discord Resizes 150M Images Every Day with Go and C++

[drdaeman]

Client uploads with client-provided thumbnails could lead to some pranks.

You know, a thumbnail with a cute kitten but something completely different after you click on it ;)

[Xeoncross → drdaeman]

I think you misunderstood. The client is uploading a single data blob for each image, but the blob can be smaller if the client resizes it first.