This is one of the things that I'm struggling with right now as well. My reddit experience was heavily curated in favor of smaller subreddits, to the almost complete exclusion of top subreddits. The thing is, since Lemmy is so new, it hasn't had the opportunity to build up a diverse array of specialized communities the same way. So basically right now all we have are mainly versions of the "big" Reddit communities, along with ones that decided to emigrate here from Reddit.
But it turns out, content from "big" communities is often the same low-effort, lowest-common denominator stuff regardless which platform is hosting it. Memes, clickbait, and ragebait permeate the top results, because well shucks, that's what people want to see and engage with, apparently.
I'm hopeful that if/when Lemmy continues to grow, that it'll become home to more active specialized communities. In the meanwhile, I've been trying to improve the experience as much as possible by A) trying to subscribe to more communities and B) slamming that block community button like I'm playing Hungry Hungry Hippos.
This is false. They were banned for maintaining a policy which denies that LGBTQ+ people have a right to exist as they are.
Also, you were totally allowed to make anti-LGBTQ+ content. You were only prohibited from making anything pro- because let me tell you, if you've ever tried to get glitter out of an echo chamber, it is a total hassle.