With that kind of attitude it's no wonder that civil rights disappear day by day. Your claim that mentioning an SHA-1 gets anyone in trouble is downright ridiculous. Why don't you forbid using any one word that may lead to copy-enrighted work when you search for it on Google or elsewhere? Where are you going to draw the line tomorrow? It's a wonder you're allowed to mention LimeWire, BearShare and others here. Someone could use those to download copy-enrighted material and you even help them. Last time I checked only lawyers used such a non-sensical and twisted logic but not sane people.