1. You're getting better with practice, level and gear.
2. The F2P players are hitting WZ's and don't know their heads from their...you know.
3. Both 1 & 2.
Oh, and your a sniper so you can stun and knockback at will, stay in one place and 2 shot people.
F2P's can only do 3 WZ's a week, they are inconsequential in PVP.