This is an obvious question, but do you ever think "I need to post about this now" for any reason? This is especially one which I think concerns multifannish people, but not necessarily.
How do you decide when you need to post about Fandom X, or when it's best not to? How do you know when to post about Daily Life? Do you have some kind of roster ("fandom x on Mondays, fandom y on Tuesdays, Daily Life on Wednesday, multi-fandom recs on Thursdays... etc.")?
Do you not worry about what to post when to post at all?
If a lot of people have added you to their friends list from a particular interest or fandom, and over time you've now drifted away from that interest or fandom and don't post about it anymore, do you ever feel guilty?
Let's look at this the other way too; have you ever added someone and then found you wished they posted more about a certain topic?