Prologues, Good or Bad?

Why use a prologue?

I believe that if a prologue is an information dump (InfoDump) it is wrong. The reader will not read it. They want a story not an InfoDump.

But if the prologue is a scene or two, like every other scene in the story, then it is correct. It gets the reader to keep reading, which is what the author wants.

So, a prologue is a scene, complete with character with conflict in a rich setting with a twist to end the scene, and it happens years or centuries earlier then when the story begins.