I joined Twitter back in 2011 and, for the most part, I've appreciated the experience – it is the social media platform that I spend the most time on. It's a great place for me to get the word out about my writings and music, and to find/follow/read other people's work. But over the last few years, Twitter has become far more difficult to navigate.
For me personally, the primary reason has been the anti-transgender backlash we've been living through the last few years. Not that long ago, trans people were not in the public eye so much, and while trans-haters definitely existed online, they were not very organized. But nowadays, they are far more vocal and coordinated in their efforts. Often they will swarm transgender people's (and allies') feeds expressing hatred and misinformation. Increasingly, they've resorted to mass reporting to get trans people suspended from the platform for relatively benign things.
Then there are the usual aspects of Twitter that most of us have engaged in at one time or another – e.g., quote-tweeting articles & tweets that we disagree with (thus enabling/encouraging our followers to comment upon them as well); tagging/@-ing other people into conversations that they'd rather not be a part of. While not always done in a mean-spirited manner, these things can also make Twitter somewhat inhospitable at times.
As a writer, I am quite used to being criticized. And I understand that social media is now the new public forum where ideas will be shared and debated. While I am always open to listening to sincere constructive criticism, far more often than not, the negative comments I receive on Twitter these days are either thinly veiled (if at all) attempts to smear or dismiss transgender people and perspectives, or more general complaints about "liberals," "feminists," "SJWs," and the like. In some cases, these individuals may simply be "letting off steam" or "getting something off their chest," but the end result (whether intended or not) is that other people who are fundamentally opposed to my perspective & existence will likely find that comment and flood my feed, thus creating a hostile environment for both me and my followers.
So long story short, I have become very liberal with blocking accounts.