(I don't normally reply to ACs, but three of you bring up good points, which outweighs the one asshole.)
Actually, no on the toe. Of course there are shots where the gymnast is in a type of pose that doesn't need to be immortalized in a photograph. You'll get that in any sport where the standard method of shooting is "spray and pray" (set the camera on continuous shooting, hold down the button as the gymnast starts a flip, and pray you get a good printable shot at the peak of the flip). And yes, I go through and make sure those don't go out in the wild. But in all honesty, I've never seen a camel toe shot in the schools I shoot at. High school leotards are designed to prevent just that sort of thing. If a high school gymnast is showing toe, then the coach did a really poor job of selecting leotards for the team.
As for the "reasonable suspicion" part, no it really isn't. You'll see more skin at any public beach (and probably most shopping malls in the summer) than you will at a high school gymnastics meet. And most gymnastics meets are so lightly attended that the parents and coaches generally know quickly if anyone suspicious is showing up. If someone unknown shows up and just starts taking photos, someone else is going to ask questions. I started out by taking photos of a family member and her friends on the team 8 years ago, I didn't just randomly walk in off the street with a camera and start shooting. There's also the part, at least in my state, where one must obtain permission from the school principal or the state sanctioning body (depends on particular meet) to distribute the photos commercially. And finally, getting good gymnastics photos is not a cheap endeavor, nor is it something you're going to learn overnight. You're generally in a very large room with piss poor lighting and a strictly enforced rule of no flash photography, and photograph is only allowed in certain areas if you're shooting from the actual gym floor and not the stands. You ain't going to get even passable shots with an entry level camera you bought the day before a meet, a kit lens, and the camera set on "Programmed". A pedo isn't going to devote that much time, money, and effort to something that only lasts 12 weeks a year.