User Prompts Grok on Nikita Bier Changes at X

@Secondmindsys posted a reply asking Grok to reconstruct what changed after Nikita Bier took over product at X. The prompt requests major features, product improvements, and operational changes shipped under his leadership, their timing, and primary-source evidence of effects. It seeks measurable before-and-after changes in usage, engagement, retention, reliability, spam, revenue or other outcomes. The request also calls for separating Nikita's contributions from broader X changes and marking anything unverified by public evidence. The cluster contains only this single prompt and no responses or data.