I've been watching anime since I was a child and I was first introduced to anime from TV. Notable titles were Sailor Moon, Pokémon, Beyblade and similar series that were imported to my country. I've since grown to become a fan of anime, manga and Japanese pop culture in general.
My older stepbrother introduced me to a wide variety of titles when I was a teenager and we used to watch a lot of shows together, some whose titles I don't remember and some only a few sporadic episodes here and there.
As I grew older, I began to develop my own taste and I became particularly drawn to shows that tended to be labeled mindfuck, cyberpunk, mystery and noir (it's notable that I've seen almost every title labeled as mindfuck on Anime-Planet). It is difficult to justify why these genres, but it has something to do with how the stories tend to be structured, told, characterized and ultimately try to deliver some general and profound idea about the nature of humanity and the human experience. I like stories that ask interesting questions and are capable of producing meaningful answers, may that be live action TV series, manga, anime or live action films.
The genres I probably enjoy the least are those that are the opposite of this, meaning that they are often overly gratutious in content but there is no real questioning or trying to seek answers. I would, for most of the part, call these stories "simple storytelling" or "simple entertainment" in that they can be entertaining by themselves, but as a whole the story is focused and driven in such a way that simple elements take precedence over those with potential depth. Most notably I am strongly averse towards ecchi, harem, yaoi and similar genres.
Due to my limited taste, there is unfortunately not much anime that I can see and thoroughly enjoy, but I tend to keep an eye out. I also realize that to some, I may come across as overly elitist and perhaps I am, but I see it as such that I simply got standards. I tend to view myself as open-minded and I can often see why other people find a specific work of art entertaining even if I don't like them. It just means that; we got different tastes.