What role did users play in Twitter's most successful features?

According to Jack Dorsey, users played a fundamental role in Twitter's most successful features. He emphasizes that elements like the retweet, reply functionality, and even the word 'tweet' itself all originated from Twitter's user community rather than being company innovations. Dorsey highlights how users essentially defined the platform for themselves, creating the very features that would become central to Twitter's identity and success. This organic, user-driven development represents a key factor in Twitter's evolution from its early days into the influential information network it later became.