To create a post, press New Post button:
Start typing in your question or title of the post you want to create. You will see titles similar to the one you are typing. You can press suggested links and see whether there is already an existing post answering your question.
Choose the topic where the article will be created. You will see a list of products and topics. This can be edited later if you choose the wrong one.
Press Submit to create the post or Cancel to exit the page.
All users following the topic you chose will receive an email that a new post has been created. If users press follow on the page of your post, they will also receive emails with all new comments.