In addition to that, one of the culprits here is a widespread sample code that was carelessly copied to a popular app. Shaming does penalize the other culprit but not that one.

Surely the code sample is not to blame here? Or do you truly think the author of the sample is also deserving of being called a "culprit"?

Just to be clear, I don't think every author using this image for their sample code is to blame. I'm specifically looking for someone using the public Wikimedia CDN for speed tests [1] and I think that someone is probably the sample code author.

[1] https://news.ycombinator.com/item?id=26073450 has located the actual app and intended purpose, for your information.

It could provoke an angry mob, which doesn't help anybody.

Given that it doesn't display it, and that the image u.r.i. is frequently used in example code rather than something with example.com, it was almost certainly an innocent mistake of copying example code.