Ahha, as I suspected. Of course, despite having stats for each and every tweet in database, they wouldn't even care to check if some particular tweet was loaded for the user. That's not an issue though, Twitter is just a walled garbage.
If you can build your thinking around outlining and can tolerate minute inconveniences, I think it's a nice tool for PKM. Not sure about what privacy Logseq adds, from the perspective of someone who uses Obsidian with SyncThing to synchronize his notes between devices.
Oh... It sucks.