Hee.

I don't grant access to people who have only subscribed to me, because I assume they're there for more of the same of what they've seen. Don't want to impose, etc.

yup, I know what you mean. However, I know that not even everyone I know uses friending in the same way... perhaps I subscribe to someone because i want their public entries, but they see my indicated interest and grant me access because they want to be friends?

Just discussing it makes me sound callous. I can't help it! My attention span and socialising skills are equally minimal!