An user marking a web as spam is hardly a problem. Haven't you used Gmail? If I tag a site as spam, DDG shouldn't show it to me. If a thousand users mark it as

An user marking a web as spam is hardly a problem. Haven't you used Gmail? If I tag a site as spam, DDG shouldn't show it to me. If a thousand users mark it as spam... then it starts to be clear that is a shady site, and DDG should eliminate it from its system. Uhm, but now we have a vector for script kiddies to ban sites from a... who knows, maybe in some years... major web search. Perhaps definitively removing a site should be done by a human operator.