While participating in my first long course event at Eagleman, i was struck by the sheer number of athletes shamelessly drafting on the bike course.

I would like to hear some opinions about this subject.

Don't we think that a 4 minute penalty is not enough to discourage people from drafting in a long course event?
I mean: by drafting behind a faster athlete for the best part of 56 or 112 miles, one can gain way more than a 4 minute advantage over a non drafting athlete of similar strength.
The drafting athlete, if caught, would only enjoy 4 minutes of rest at the penalty tenth, and start again fresher and more rested than the non drafting athlete.