Why is this an advanced topics now? I didn’t get an alert for that or anything

So, the technical explanation for this:

@codubee maintains Scratch's cache server, meaning they write the code to configure it and generally make sure it's working well. They intentionally programmed that server to, every time their profile picture is requested, send back a random image from a file stored in that server.

If you repeatedly reload the page, you will likely not get a new image each time because your browser decides to use its own cached file instead of requesting it from the server, as a way to save network resources and reduce loading times.

BigNate469 wrote:

If you repeatedly reload the page, you will likely not get a new image each time because your browser decides to use its own cached file instead of requesting it from the server, as a way to save network resources and reduce loading times.

It has