The other nice thing about your Dream Journal is that people can comment on your dreams, so you can still ask for interpretations. Also, you can set a privacy setting so that some entries are friends-only, or even self-only.

I would reserve posting dreams in this area for recent dreams (past couple months), and only if you really really want an interpretation. An extremely vivid dream that made a strong impression on you, or a recurring nightmare, for example. Also, I wouldn't recommend using dreams from several years ago because its meaning may not be relevant anymore, and/or based on past events. To be honest, one reason for this is that it takes a lot of energy for people to read and attempt and interpretation. You're more likely to get people to do this for you if they feel like it's really important to you. So a dream every so often seems more important than one posted every other day. You know?