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
He means that you need to become a Jr Member to post images and links on the forum for launching your announcement thread. So after you complete your 30 posts your account will be upgraded to Jr member and then you will be able for that.