Journal Birthday reminder
Short, concise description of the idea
For each user to (optionally) receive an email on their journal's creation date (it's birthday!)
Full description of the idea
Pretty self-explanatory I think. On each anniversary of your journal's creation, you'd receive an official LJ email reminding you.
An ordered list of benefits
Someone gets to feel good knowing they did something that at least two users will appreciate! :)
At least one person (who is far too shy to suggest this herself!) gets to feel good knowing that next year, she won't miss her journal's birthday!
An ordered list of problems/issues involved
An organized list, or a few short paragraphs detailing suggestions for implementation