If this show is so bad, why do people talk about it years later?
Don't listen to the people who call it bad or shit
There's a lot of ground between "excellent" and "shit" and the people who toss Madoka into the latter category are just contrarian trolls.
It's a very good show and it made a splash for being an anime original and subverting the genre
I liked Rebellion well enough.
Would like it more if they had actually had another follow-up movie planned instead of waiting several years just to tease at the possibility of maybe continuing the cliffhanger.
It isn't bad, as for why it's still talked about; you know the answer.