If you mean screaming as in screaming lyrics almost incomprehensibly and trying to pass it off as a genuine replacement for singing, then I hate it. Not much else I can add. I don't see it having anything redeeming about it, I just think it's shit. I do acknowledge that there may be some genuinley well written screaming songs but even if they are genuinley well written I don't care because I hate the way it sounds and don't see any appeal in it. Exact same goes for rap, I just hate how it sounds.