stoolpigeon's Journal: Systemd, Plymouth, KDM, weirdness

Very recently my Fedora machine stopped booting to the graphic login. It would be humming along, I'd see my little "f" appear, then I'd drop back to a text list of boot up events and it would just sit there. I could hop over to another tty and log in and then startx and log into KDE.
 
I've been busy so I didn't have time to try and figure it out. Today I finally could do a little research. I found stuff like this and this. There was a lot of other stuff too - but what I couldn't find is a single explanation of just what is going on that I could understand. I hate changing stuff in my system without knowing why I'm doing it or exactly what it is I'm doing.
 
In this case a quick "mv /var/log/journal /var/log/journal.org" did resolve my issue immediately. On reboot everything performed normally. But why? And this has been going on for a long, long time. That first link is a bug report that was opened just shy of a year ago. Not sure why it just hit me within the last few weeks. I'll keep digging when I have time to see if I can ever find an explanation of just what is going on.