Caveat: Never have fished in a contest, unless you count the trout derby's I did when I was 7 or 8 years old...
Some internet muscles being flexed in this thread, but no one took the 10 seconds to post on that TU facebook page to ask them to take their garbage down. For all you know, maybe one specific person was assigned to clean-up everything and he screwed up, so you will hold it against every competitive fly fisher in the world.
And don't tell me that we as men (and women's flyfishers as well) are not "competitive".
90% of the guys you walk by or ask "how did you do", need to brag about their catch. It's almost never "had a great time, weather was great, fish were hungry, landed a few". It's "i caught 37, how did you do?". Especially when you flat out mention you aren't doing well, do people really think its a nice thing to say "oh, thats crazy, I caught 10 or 15 or whatever, your luck will turn around"....
We're all competitive. These guys just happened to organize it. If you read their events, they almost always do some type of stream clean-up or educational event (the TL guys at least), but basically if you're judgmental, that's how you are going to be.
Your hooks hurt just as bad as their hooks do, in a trout's mouth, and I'll guarantee you on the streams they are catching, if they aren't catching them that day, 300 other anglers are catching those fish the rest of the year.