It's creating your own bubble. Not really a good thing for anyone who values a broad perspective of the world.
You can value a broad perspective of the world, and follow high-quality feeds of many perspectives.
But when you find a low-quality feed, blocking the author and their entire ecosystem of promoters and sycophants is an effective method to increase your signal-to-noise ratio.
The people who provide high-quality feeds will invariably be caught up in your block spree.
If you want a broad perspective of the world, reading negative bullshit from angry twitter trolls is not going to help. It's just going to make you angry too.
Hence... the blocking?
It’s just a spam filter, homes. You telling me you don’t block spam? Bullshit.
We should probably spend more time controlling our outputs than our inputs