Twitter or Facebook, which one is worse from your perspective?
Definitely Twitter, for a couple different reasons:
1) The brevity forces people to constrain what they say, often leading to missing nuance and an increased chance people misunderstand what they say. It's gotten a bit better since they doubled the character count, but I've never seen as many overly-simplistic ignorant takes on Facebook that very easily rile up everyone who reads it.
2) Their comment algorithm is garbage, it's always the worst comments at the very top. Every time I click on a tweet (on any topic, from any source, of any level of popularity) and scroll down, I'm instantly presented with hurtful/butthurt/gotcha comments from rude people who make me lose a little more faith in humanity. Facebook comments, on the other hand, are usually lighthearted or generally happy, if a bit boomer-oriented, unless you seek out inflammatory content like politics.
3) Their UI is terrible. Why does it only show you the first 4 comments of a thread before silently transitioning you back into showing random tweets having nothing to do with what you were just reading? Every time I get started reading a twitter thread, I feel like I'm having a stroke when suddenly none of the comments are related or sensibly cohering with each other. And if you click the blue-on-blue unhighlighted "See more" button, Twitter grants you two more comments before instantly dragging you out of the thread again. I know you want to inflate your impressions, Twitter, but stop disrupting my reading experience to do it. Facebook actually lets you read the whole comment section of the thing you're on without constant interruption.
4) The "Trending" tab is a cesspit of angry, political, and irrelevant topics, never anything I actually care about. From celebrity drama to flamebait political taglines to (worst of all) billionaire gossip. And then if you actually click one, all you see is 500 tweets going "
anyone who uses this hashtag is an idiot! Stop the astroturfing!" I mean, Jesus, is every side on Twitter just mad about everything all the time?
5) Everytime I login I have one unread notification. If I click it, it's a completely random tweet that Twitter has decided to show me. It's never someone I'm following, or a topic I care about, and often there isn't even enough context for me to understand what they're talking about, like Twitter's trying to bait me to click it to find out what they're trying to say. I usually just block the person instead. Show me something I remotely care about (and maybe stop abusing the concept of a "notification") and we'll see, Twitter.
Facebook doesn't have most of these problems, though it's still a terrible site and I don't think I've logged in for over a decade. But Twitter is easily my least-favorite website on the planet, and I hate that everyone tells me I should be marketing myself on there. I'm well aware I should be, but it's such a negative and pessimistic cesspool of ignorant vitriol because every single design choice was optimized to shove your face in the worst content the site has to offer.