Your blog lives and breathes, with Notifications you can check its pulse. This support doc explains what Notifications are and how you can access and interact with them.| WordPress.com Support
Discussion Settings are used to control how visitors and other blogs interact with your site. Covers managing your default article settings, other comment settings, email notifications, requirement…| WordPress.com Support
Comments are a way for visitors to add feedback to your posts and pages. If you choose to enable comments for your posts, a comment form will appear at the bottom of the posts and people can respon…| WordPress.com Support