I voted for "keep it mixed", but I agree with camstone. Don't feel the need to pander to us.

I go through my share of personal hand-wringing, and "What do you people want from me?" moments with my own journal when I go several posts in a row without comments. Even so, I have continued to post what and when the whim strikes me.

The fact that there hasn't been a mass exodus from my friends tells me that, if not right, at least I'm not going too far wrong.