Your point in the wider discussion aside (sure, population-wide imperatives are a dangerous rhetorical device), I actually think actively participating in the Reddit rage comic community can be a very valuable experience. It will teach you how to tell a story and communicate the humor of a situation using a simple image editor. You can watch the real failure-learning happen in [1]. Thinking your work is comedy gold and getting it downvoted into oblivion is a great, highly-concentrated learning experience.

English teachers in Japan are also using rage comics to supplement their English lessons and inspire their students to learn words so they can understand their classmates' jokes [2].

[1]: http://www.reddit.com/r/fffffffuuuuuuuuuuuu/new/

[2]: http://www.reddit.com/r/EFLcomics