The recent acquisition of Stack Overflow for $1.8 billion by tech investor Prosus has raised concerns among users about potential changes to the platform. Many users speculate that significant alterations are unlikely, as the existing model is effective. However, there are fears about the introduction of targeted advertisements, mandatory sign-ups for additional content, or even subscription fees, which could negatively impact user experience. The discussion also touches on the financial aspects of Stack Overflow, questioning how the company generates revenue given its limited advertising. Overall, the sale prompts apprehension about maintaining the platform's value to the tech community while meeting investor expectations for returns.