Implicit signals are far more significant than explicit. Search engine already know which links are not getting clicks and which links are causing re-queries an

Implicit signals are far more significant than explicit. Search engine already know which links are not getting clicks and which links are causing re-queries and which links causes pressing of back button. People do dumb things if you ask them not to show results from a domain or even “report spam”. For example, Fox News and CNN will all be marked as spam millions times a day even after people are finding what they are looking for.