Every time tumblr makes some catastrophic change to the site, there are influxes of new users to other social media sites, and some of them will come here. We've seen this before, and we're probably about to see it again!
For those who aren't aware, Tumblr just introduced an update with basically no warning that completely changes how interaction works on that site, which... basically breaks the core functionality of the site. Instead of each post having one aggregate number of "notes" (which include replies, reblogs, and likes), each reblog that adds anything to the original post functions as a new post, with its own note count. In theory, they claim this will give more recognition to rebloggers who make valuable contributions to a post. In practice, it's a nightmare, because anything adding onto a post has effectively hijacked its engagement away from the OP, who can no longer follow what's happening on their own post. It's a mess! Tumblr users are notoriously resistant to change, but this goes far beyond an ugly interface or adding another click to a commonly-used feature. This will be truly devastating to the whole culture of tumblr if it doesn't get rolled back.
bardic-tales has written a good essay on the impact of this change here: The Death of the Digital Ecosystem: Why Decoupling Notes Destroys Tumblr
I've had some thoughts of my own which I'll copy below.
( The implications for discussion posts... )
( Connecton vs. Control, and how this latest Tumblr update broke both )
Anyway, as always, I hope we can give tumblr refugees a warm welcome when we see them, and help them navigate doing fandom on this site, as it's very different from what they might be used to.