Why?
Social Media?
I believe yes, but at the last time I checked it out no instance had open registration, matter of fact you will have to look for good time for a free instance to register on.
Maybe they changed it now, but 1 year ago that was the case.
Pixelfed has a default limit to the number of users per instance.
The same applies to the mastodon . Social instance and the same applies really to every Fediverse software available, with the exception of pixelfed.
In my humble opinion, join lemmy should only exclude the instances that is harmful.
They should not choose the instances to include for the users.
Holy shit, the most active instance right now on the website is LemmyNSFW.
That is a very weird thing to do, unless they are looking to boost their own instance.
The statistics there is confusing for me.
In that case, you are looking for a flair system for lemmy videos community, which would ease your concern.