Yes, when I go to their journal and see one public entry from three years ago, it's nice to be able to look at the profile and see that actually, they've posted lots of entries and comments and have been active within the last week. I don't need precise numbers or date/time stamps, but I want to be able to see that something is going on.

And I've never been offended by noticing that someone who has me added posted something I can't read, or been worried that other people will see I've posted something when they can't read it.