This is basically a rewriting of my phase I notes. The point of these changes is to make GTX0 make more sense and also be somewhat more inviting for newcomers. The end goal is to have GTX0 in a state where I can start advertising it as a platform. I'll then swing around to other projects and start fixing up those -- they have their own advertising targets.
Let you delete site feeds
Edit History for OP's (mod feature)
For reply-based images, have a "click to expand" action. Have "fullscreen" and "close" options.
Youtube videos: have "click to expand" and "close" options
Auto-draft saving. Save drafts when you submit a post as well, set to "posted" status instead of deleting. Automatically save drafts when you click any link whatsoever.