Yes, as a junior member you will be able to post images, links, images with embed links, a lot of features will be activated but it takes more then 2 weeks to be Jr, as you can only have 14 activity/2Weeks. Keep posting or connecting.
I read about the activity calculation [min(time*14,posts)] but didn't really understand what it meant. What is the time here and how is it calculated
You must make minimum 14 posts for gained your activity point and which mean the point will increase every 2 weeks and you need to make at least 14 posts to get 14 activity at the end of the week two. it's simple.