In October 2022: Community Notes (aka Birdwatch), to facilitate crowdsourced clarifications and corrections to misleading tweets, https://twitter.com/CommunityNotes/status/157800457599020237.... This uses some intriguing algos to surface 'best' contributions, such as when accounts that often disagree, agree on these, as well as on earned-over-time reputations for reviewers.
In July 2022: Unmentioning to leave a conversation entirely, preventing others from mentioning you (not just muting), https://twitter.com/TwitterSafety/status/1546555047630159872
In October 2022: Community Notes (aka Birdwatch), to facilitate crowdsourced clarifications and corrections to misleading tweets, https://twitter.com/CommunityNotes/status/157800457599020237.... This uses some intriguing algos to surface 'best' contributions, such as when accounts that often disagree, agree on these, as well as on earned-over-time reputations for reviewers.