Rails 3 is doing a lot to "fix the fuckedness." This was a patch from a contributor, not the implementation of some kind of puritanical new policy by the Rails core team. Personally I find the all the ZOMG comments in the source code stupid and annoying. Removing them was a good idea.

the advantage of putting the TODO there is that, some IDEs and tools allow you to see TODOs across the project. Even without that it is pretty easy to grep for "TODO". Otherwise you will have to have a list : fuck, fucked, screwed, shit ... :)

    -  # OMG HAX
    -  # TODO: remove hax
    +  # TODO: remove hack

Agreed. Some make sense by using clearer names (an object named 'omg' isn't very helpful), but others are rather pointless. Like here, there was already a TODO so it was fine, really.