Except it encourages post cramming. We could post a few cryptograms, that would be fun and difficult. We could even make it gaming related and post excerpts from various manuals.
For example:
There are 8 kingdoms in the Mushroom World where Mario’s adventures take place. Each kingdom has its own map. Mario can choose any road, but on the map there are a lot of points that you can’t pass if you don’t clear an action scene. At the start of the game, you get five players (the number of Marios remaining (4) will be shown.) In the game there are places where you can get power up items and even get extra Marios (1-UPs.) You must get the royal magic wands back from Bowser’s 7 children.
to:
Iavbv mbv 8 fkgwtesz kg iav Sdzabees Xebyt xavbv Smbkez mtcvgidbvz imfv nymrv. Vmra fkgwtes amz kiz exg smn. Smbke rmg raeezv mgj bemt, pdi eg iav smn iavbv mbv m yei eq nekgiz iami jed rmgi nmzz kq jed tegi ryvmb mg mrikeg zrvgv. Mi iav zimbi eq iav wmsv, jed wvi qkcv nymjvbz (iav gdspvb eq Smbkez bvsmkgkgw (4) xkyy pv zaexg.) Kg iav wmsv iavbv mbv nymrvz xavbv jed rmg wvi nexvb dn kivsz mgt vcvg wvi vhibm Smbkez (1-DNz.) Jed sdzi wvi iav bejmy smwkr xmgtz pmrf qbes Pexzvbz 7 rakytbvg.