This thread of for fun, but also to give some pointers to new players. We're all noobs here, there's no shame in it.
Noob rangers are easy to spot, because they walk around with dead pets. The pet has a "revive me" sign on it, but it still follows you around giving the illusion of life.
I've seen two people fighting in their underwear. I explained to one that he needed to get his armor repaired. The other was in WvW team so I did not get a chance to explain the armor repair.
Noobs trying to revive people in the middle of massive AoE's, instead of waiting for AoE's to stop or clearing nearby foes first. Guilty as charged.
People shooting off 5-6 shots after everything is dead in large battles. 1-2 is understandable. More than that you need to learn the UI better, especially red outlines of your target. Admittedly, I can see this being a common problem that settles pretty quickly with experience.
Mesmers in PvP making clones, then immediately using skills clones can't use or circle strafing which clones also don't do, thereby giving away their position. Maximum confusion is achieved by acting like clones at least part-time. And those who actually get confused by the clones despite the noob mesmer behavior, those too are noobs.
And that one engineer complaining that he gets no weapon swap. I explained to him about kits, he was very grateful.