jointhefediverse.net seems to be a commonly linked resource for directing people to join the Fediverse.
Curiously, it does not list Lemmy under the list of Reddit alternatives. Their GitHub README explains why.
Previous relevant discussion: https://lemmy.ml/post/78808
But lemmy.ml isn’t the most active, nor does it host the most active communities
I didn’t say it was the most active. I said it was the default. Which has been proven already by many others here.
Where? the comments dismiss that statement, saying that it’s just an instance among others
https://lemmy.ca/comment/13804330
If there is anything as a default instance, it’s Lemmy.world