Twitter users; Twittersphere
Colloquial term for the collective of Twitter users, often used in online discussions or news about trends on the platform.
The reaction from Twitter users was quick.
That news is a hot topic among Twitter users.
Compound of ツイッター (Twitter) and 民 (people, citizens). The suffix 民 is commonly used in online slang to refer to a group of people associated with a platform or community.