I hate how everything in LiveJournal takes forever to figure out. Then, when you finally find the answer, you're hitting yourself because it was SO fucking simple.
To "get notified" click on the thumbtack icon at any post, journal, or community. The trick is: for a user or community you have to go to the user info (profile) to see the thumbtack icon!
Or go there directly: if you click
here you can get notified for
Danny_Jordan. By replacing the name of the community with the user or community of interest, you can use that URL to get notified about them.
Gah. Finally.