While your judgment about Iran is correct, the bold-faced lies are common to every side in every war. The pro-war people are posting images from Iranian celebrations in the past, claiming that these are Iranians celebrating being bombed

At least those pictures can pass basic smell tests, most people would have never seen those pictures before and even if they did they likely wouldn't realize they had, the premise still sounds dumb, but at least it looked like a real picture, I genuinely don't see how anyone could look at what was posted here and not notice how completely fucked the scale of everything is.