I want to add pictures to my announcement, but it will not allow me. Please let me add pictures. I don't feel like I should need to spam in order to increase my activity so that I can post pictures. And add a thumbnail picture.
If it's just the thumbnail picture, you may wait for the next activity upgrade. Your current rank is 28, so when your activity updates, you would be a Jr. Member and would be able to post the images.
Currently you may use the "[img]" tag in your posts and when you become jr member, the pictures would automatically start showing to your previous posts as well.