Well, the 1/2 IM last year in Busso was one big draft fest..
The organizers knew/know about the increase in people but space will always be limited. I can assure you it was discussed on a local tri site..

Let's just say some of the bigger/more experienced tech officials handed out TONS of drafting penalties.. Even on a crowded course, the drafting rules still apply.

Even if you're new, you need to read the rules. The information is avaialble.