
There have been lots of entries throughout

Also, while this is an "official" community, it is run by a volunteer (me) for the purposes of pointing out nifty LJ-related stuff. No off-site tool/service posted here, unless otherwise stated by a LiveJournal employee, is officially endorsed or officially trusted.
Whether you share your password is up to you. LiveJournal's official stance is that you shouldn't share your password, because it creates an insecurity for your account, and I concur with that.
If you're concerned about your account's security, I recommend you read this FAQ: How do I choose a secure password? How do I keep my account secure?