I have always found it hard to believe that people think that twinks have no skill what so ever. This logically doesn't make sense as the people who are "twinking" have generally put in the time to get to 60 on atleast one character and have had the ability to aquire enough gold to create a twink. Many of these people use their twinks to give them some sort of entertainment between MC/ZG/BWL/AQ runs. Now, I'm not the biggest fan of twinking myself, as I feel that it ruins the battlegrounds for the lower level players who are just learning the game. However, on some older servers, the amount of these people is a vast minority to those people who are leveling their second, third, etc... 60. Many "twinks" who play battlegrouns day in and day out have vastly more expecience than the average PvPer. They have done the reasearch where to get the gear, what gear to use, how to play against various classes, etc... There's a lot of planning that goes into a good twink.
Many people think that twinks are simply people who bought 1000s of gold and are now outfitting their low level main. This simply is not true. Many twinks generally have a great deal of knowledge of the game, of PvP, and on top of that have great gear. This makes them extremely deadly in many cases.