Post 1 (http://habitua.net/how-to-use-rewards-to-defeat-procrastination/) : What's the goal of this post? I don't think it's wrong but I can't see the intention behind it.

The intention was to give some direction as to the kinds of plans that can be effective in overcoming procrastination. I can see that more detailed suggestions would be helpful, and I'll look at that in future posts. I'm deliberately keeping posts short, so I actually get them done and posted.

The post about advertising also seems to lack a clear goal.

I thought that was an interesting insight into communication and the nature of advertising, but you're right - the goal was not so clear.