You can still use Reddit, just now many users have a motivation to diversify their information platforms. Fediverse does that, and only ask that your new content, discussions, and questions be added in the fediverse instead. To help growth here.
For example, I curious about SFF PC building and, yup, Reddit already had a sub for that. If I have future questions I'll just post them on /m/technology instead.
Of course PoE players would min/max to the extreme. Never expected anything less. Big balls move.