Re-enable it for users without an account. Yes, these users can not be as efficiently monetized, probably a reason why they stay anonymous. While links to Twitter are rare, some do announce publications and you cannot scroll down without Twitter demanding an account. There is a workaround for that, but usually I just close the page at that point.
Long form tweets. Short form tweets mean readers need to interpret what is said in good faith, but some people struggle with that and since the algorithms love controversy those are the tweets that often end up receiving disproportionate attention.
How about removing actors that have tweeted 300 times Every Day for 5 years.<p>This is 19 tweets every waking hour for 5 years.<p>Tweet every 3 minutes for 5 years.<p><a href="https://twitter.com/ambrowoll" rel="nofollow">https://twitter.com/ambrowoll</a>
decentralize it so that the crazy alt-right trolls and q-anon wackjobs and jan-6th sympathizers etc etc can join the blue bird and feel happy and the rest of us left-of-center folks can carry on nerding out on tech and keeping a more or less inclusive ecosystem.<p>edit: in this way (and perhaps maybe mastadon already does this) the two need not see the same stuff in their timelines and the media can still consume from twitter to make their headlines. It might not stop the next Trump presidency (it was clear to me he used twitter to help win office) but at least the service will stay more or less the same for those that want it to and those kicked off can come back to shout into the wind and those that support them can cheer but the rest of us won't have to see it.
No feature change will redeem twitter. The basic structure (retweets, quote tweets, replies) lends itself to dogpiling. It's very easy to automate the dogpiling that twitter enourages, but it's very difficult to make a bot-or-not decision.