Yes, if they detect something illegal they remove it. Perhaps "censorship" was the wrong word. If they begin establishing the precedent they will censor or edi

Yes, if they detect something illegal they remove it. Perhaps "censorship" was the wrong word. If they begin establishing the precedent they will censor or editorialize content which isn't illegal (all of the things you mentioned) then I think they become legally liable for things they don't edit, like slander which is a matter for civil rather than criminal courts (at least in the US).