I made this suggestion regarding Creep Block before
(And about 3 people liked it. New record.)
Anywho, if creep block isn't getting removed and can't be toned down thx to spaghetti-(c)o(de), here's my alternative:
Have the game notify us when we give a movement command that can't be directly followed through.
In other words: *Hey, you have to move around that terrain or that creep wave, you can't walk there in a straight line."
I suggest something like a colored wow, racist flash similar to the way the screen flashes red when you take damage. Something that you can react to fast enough but that isn't too disruptive.
Thoughts?