What is reduced advertisements?
Once you reach the milestone of 200 reputation, certain ads are automatically disabled from view.
What will my view look like when these ads are disabled?
After achieving this privilege, the two "leaderboard"-style ads (shown in red below) will be automatically suppressed from question pages when logged in:
(The areas in dark gray are the sidebar ads, which will remain visible.)
What about Meta sites?
Meta sites have no advertisements, so this setting is not relevant for them.
But what if I still want to see those ads?
Ads can be beneficial – when done well, ads provide information about products and services that you (and other community members and site visitors) will find valuable, and they help to fund the ongoing maintenance and delivery of this site. We vet advertising seriously, and we are uncompromising in assuring certain standards.
If you decide that you would like to see banner ads because they're useful or interesting to you, then you can disable this privilege. On the "Preferences" page of your profile settings, under the "Advertisements" section, you can click the toggle to re-enable these ads:

