I am new to this community. I would like to get emails on tops/discussions happening in this community. What is the best way to follow all discussions in this community.
My preference is RSS feeds. While Google Reader is dead, feedly is quite good. Sign up with an account and click on those little rss icons to sign up. This will allow you to quickly digest spam vs real content that applies to you.
You can click on "Receive Email Notifications" on the action box in any space or discussion to get emails.