Angles are mostly used to give a 3-Dimensional view on what's the scene is happening, it could mostly be cinematic, which is the best at, and at times, angles serve some action scenes that gives more impact and realistic look. I've seen people use angles, and it doesn't bother me that much, but what DOES bother me if they use the angles for mostly everything, meaning focusing everything with just angles. At first it looks amazing, but in reality, if they don't turn down the angles, it's going to be too cluttered, too fast, too confusing, and too unfocused. That's my main problem with people using way too much angles. Sure it's cool to use it ONCE in a while, but if you use it just for every shot just to make it look awesome, the more likely that they'll not only confuse the audience, but lose the attention. I'm just tired of people that just only focuses on the angles and not the entirety of the anim. I'm not going to list names, but I'm aware that there are those you know that are too concentrated on angular views. Angles isn't everything, guys. Remember that. Give the anim some room to breathe! Let the viewer's eye sink into the environment, give some form of dialogue, give them a clear understanding on what's happening. You can't just expect them to just watch and like it! It needs to have some form of story, like how did they meet, why are they fighting, and so forth. Done with this part.
2-Dimensional is the most classic form of animation, I'm pretty fine with it. Many started out with just 2D because it's much easier and more simpler, those who mostly focuses on 2D are bound to be successful. To name a few; oxob3000, Murphy, Sj8, Ssjbryando, and Hyun, they have used 2D to give a more clear understanding on what's going on, you can see the background, the environment, the full view, so much they can do. What bothers me is that they don't use the proper techniques of 2D animation very well. If they don't make anything that's very eye-catching, or exciting, it's bound to get boring really fast. I couldn't think much else for 2D, because what else can I say about it?