I have had a suspicion for quite sometime that bumping may have been ore of an exploit than previously thought.
Bumping, or hugging, as it is alternatively known, is the practise of ensconcing an ACU within a spam units to prevent it from escaping or kiting.
Excuse my rather awful play, but if you go the end of the replay before I die, you will notice that ACU stops firing whilst being bumped. That's right bumping an acu breaks its order chain, so it stops firing, pathfinds and then resumes firing. If you notice in the replay, this actually contributes to teh ACU's death, as is fire rate drops, and he doesn't hit vet because he's too busy firing.
Even more distressingly this can occur with friendly units.
I'd be interested to see if anyone else has experienced this.
Thoughts?