You have the final say
With the element picker, you directly mark on a page what Noise Guard should always hide or always keep. Custom filter terms and trusted people complement automatic detection.
What Noise Guard makes possible
The element picker lets you mark any element with a click, either to hide it permanently or to explicitly exclude it from any automatic hiding (for example, if Clean Page repeatedly catches something incorrectly).
Custom filter terms work in addition to automatic comment detection, regardless of how Noise Guard would otherwise classify a comment. Trusted people can conversely be excluded from any filtering.
Why automatic detection alone isn't enough
Any automatic detection, no matter how carefully built, will occasionally get it wrong. Instead of hiding that, Noise Guard gives you the tools to correct it yourself, permanently and without a detour through a support request.
Where a rule applies, and where it doesn't
Element rules (both hide and keep) are tied to the domain where you created them, two separate lists per domain. A rule for "example.com" therefore doesn't accidentally affect a different site, even if the CSS classes used there happen to share the same name.
Custom filter terms, trusted people, and specifically blocked people (with name, domain, and time of blocking) are, by contrast, deliberately global and cross-domain, regardless of where a comment appears.
All these lists stay unchanged when you switch between profiles, a profile only overwrites the general filter settings, not your individually maintained rules.