Currently, there is a promotion for the first 10 people to make forum posts by a certain date, where the points will be added manually to your account, but there will also be rewards for receiving things like “Best Answers” as a token of appreciation.
You can see how many Best Answers you have on your profile as this image shows:
With regard to creating a new post in the forum, make sure your profile is "Public" and choose a category when publishing a new post.
You can tag people to help get answers using the “@” symbol, use hashtags, and hover over any name that has commented to view a snapshot of their profile then click to view the full Public profile.
Speaking of profiles, here's a website that you can use for free to spruce up your profile pic and background on here or any other platform, https://pfpmaker.com/