Show a loading screen while waiting to login.
Only show submit post link if logged in.
Use a method to submit a post.
Sort posts by submitted timestamp.
Demonstrate the order that posts appear using a sleep.
Added edit posts form.
Added basic permission to check the post's owner.
Only allow changing certain fields of posts.
Basic error reporting.
Actually use the error reporting.
Supposedly monitor which errors have been seen, and clear on routing. Already seemed to do it before these steps, however.