PhineasToke, I started a level 1 character last beta and explored the entire map of Guild Wars, I also leveled my character up to beyond level 20 (I earned an extra skill point). I completed every single mission more than three times each, and I got all of the skills required for my test builds. I also crafted an entire set of Knight's Armor from Ventari's Refuge, and dyed it all pink.
I am in that dance group, my name is Hugo the Horrible. If you look in the chat box of the very first picture, that is me saying "hahahahahha". It occured at the very last half hour of the beta weekend. It was going to be over with in the next half hour, so my guildies and I (and apparently a lot of other people) decided to have some fun and enjoy their final minutes of Guild Wars for the next month, by dancing their hearts out.
You're just being a douchebag about this. Just because someone chose to have a little bit of silly fun for a couple minutes doesn't mean they don't play the game to its fullest.
Unfortunately I don't have pics from earlier in the beta, but here are some towards the end.
http://www.acidfingers.com/images/guildwars/gw002.gif
http://www.acidfingers.com/images/guildwars/gw007.gif
http://www.acidfingers.com/images/guildwars/gw017.gif
http://www.acidfingers.com/images/guildwars/gw027.gif
http://www.acidfingers.com/images/guildwars/gw030.gif
http://www.acidfingers.com/images/guildwars/gw042.gif
http://www.acidfingers.com/images/guildwars/gw056.gif
http://www.acidfingers.com/images/guildwars/gw080.gif