Before: Private entries are very private.
After: Private entries cannot be read by other LiveJournal users.
From this post on Can anyone create a community?:
Before: Yes, community journals are as free a product as personal journals. Anyone with an existing LiveJournal account can create an additional journal for use as a community.
After: Yes, anyone can create a community. However, you need to create a journal first before converting it to a community. For more information on creating a journal, see (http://www.livejournal.com/support/faqbrowse.bml?faqid=104).
From this post on How do I modify the look of my journal?:
Before: Well, there are various levels of modification!
The easy way is to just change the colors or select from pre-defined system styles at:
http://www.livejournal.com/modify.bml
Paid Accounts and Early Adopters can change the entire layout of the page, and customize all the HTML, by making their own styles. Read more about that here:
http://www.livejournal.com/developer/styles.bml
If you do choose to make a new style, in order for it to be displayed on your journal don't forget to select the name of the new style from the dropdown list at:
http://www.livejournal.com/modify.bml
Users with Free Accounts can make a few changes, though. These are detailed in the other Customization FAQs, which can all be viewed at:
http://www.livejournal.com/support/faqbrowse.bml?faqcat=customize
After: There are various levels of modification.
The easy way is to just change the colors or select from pre-defined system styles at (http://www.livejournal.com/modify.bml).
Users with Free Accounts are permitted to make some changes using overrides. These are detailed in the Customization FAQs (http://www.livejournal.com/support/faqbrowse.bml?faqcat=customize).
Users with Paid Accounts, Permanent Accounts, and Early Adopters can change the entire layout of the page and customize all the HTML by making their own styles. For more information on creating your own style, see (http://www.livejournal.com/support/faqbrowse.bml?faqid=128). If you choose to make a new style, make sure to select the name of the new style from the dropdown list at (http://www.livejournal.com/modify.bml) in order for it to be displayed on your journal.
I think that's all for now.
[I had so much fun with my new tool, I forgot I had a religion test tomorrow. Whoops.]