I'm just going to shill one of my absolute all-time favorite anime here as well; Valvrave the Liberator. Let me preface this by saying I'm a huge mecha fan in general, and I've watched dozens of mecha shows at this point. However, Valvrave still easily ranks in my top five.
Problem is, I really can't talk about it much without spoiling what makes it such an unparalleled joy to watch. But let me try and put it another way; have you watched The Fifth Element? That one incredibly weird Bruce Willis/Milla Jovovich film that seems like it should be a parody, but somehow isn't? Valvrave is the anime version of that. It plays itself completely straight, without a single nod or wink to the camera, while being utterly deranged. It will present you with absolute nonsense that clearly cannot be taken seriously, and everyone will then proceed to take it seriously without a hint of irony. The story starts out batshit stupid and then devolves from there. But it's still amazing, and it has remarkably great action scenes on top of that. Watch it if you want a top-tier shitposting anime.
Problem is, I really can't talk about it much without spoiling what makes it such an unparalleled joy to watch. But let me try and put it another way; have you watched The Fifth Element? That one incredibly weird Bruce Willis/Milla Jovovich film that seems like it should be a parody, but somehow isn't? Valvrave is the anime version of that. It plays itself completely straight, without a single nod or wink to the camera, while being utterly deranged. It will present you with absolute nonsense that clearly cannot be taken seriously, and everyone will then proceed to take it seriously without a hint of irony. The story starts out batshit stupid and then devolves from there. But it's still amazing, and it has remarkably great action scenes on top of that. Watch it if you want a top-tier shitposting anime.