4 days before reddit's 3rd party app shutdown, Lemmy daily active users has skyrocketed 1600% this month
From 3000 daily active users on June 1, 2023 to 47500 on June 26, 2023.
According to Lemmy's documentation, "An active user is someone who has posted or commented on our instance or community within the last given time frame."
Bots have inflated the total users count (around 2.4 million), but they aren't active (yet). So for now active users is a recommended way to measure the fediverse. But once bots start posting, we'll have to find another way to track real user activity.