Things to think about before you call someone "Bad"

[Kirsten_Rev]

I state right out if I am new to the dungeon, though I make sure to watch some sort of video or guide first. That way I get a really good idea of the dungeon, so if I do mess up, I can blame myself for being a derp.

I really try not to fiddle with my UI too much, but it can be a pain if you get more new skills. If that's the case, I suggest practicing on the open world, so you can get used to where the UI and keys are. Gosh darn muscle memory!

If you are feeling sick or mentally not there, and if sleeping isn't helping (I've been there) I suggest doing something like gathering or crafting, or something just to yourself. I relieve stress and mental issues by playing games, but I find it's much better to do solo, since other anon people don't know what you are going through, so will be arses to you.

I second this.

Joining a party, in my mind, carries with it a certain etiquette, much as being out in public does. It's simple politeness to put your best foot forward, the best possible foot anyway. That means having an idea of the dungeon mechanics (unless it's brand-new content), ensuring you can play your job effectively if not exceptionally, having gear of sufficient quality (no, meeting the minimum iLevel is not always enough), etc. In my opinion, this should apply to most all content past around, say, level 50.

People are, of course, free to disagree, but I think it's rather self-centered to suggest that your individual enjoyment and play style should take priority over the enjoyment of three to seven other people when you jump into group content. It's the real-life equivalent of never wearing deodorant, or, on the other end of the spectrum, wearing WAY too much perfume or scented aftershave. Fine to do in your own house; fine to do around your own friends. Not fine to do in random public outings or the workplace.