uBO has a different purpose. It's essentially a blacklist with sophisticated measures in place to fix breakage it causes. In many cases it selectively filters c

uBO has a different purpose. It's essentially a blacklist with sophisticated measures in place to fix breakage it causes. In many cases it selectively filters content that is otherwise allowed through. IIRC youtube is an example of an extensive such cat and mouse game. A whitelist approach is less nuanced but far more extensive. It defaults to defending you against unknown vulnerabilities.