"Inactive" here means that there's neither been any new posts in your journal nor any comments in my journal in the past year; for the sake of simplicity I extended this period slightly to cover all of 2015 and 2014. Anyone who's updated their journal after 2013 or left a comment in mine after 2013 should be OK. So if you're reading this, unless you got an email saying I removed you from my friends list and came wondering why, chances are good you weren't removed.
If you did get an email saying I removed you from my friends list and came wondering why, well... this is it. It's nothing personal; just housekeeping. If you'd like to get back on, e.g. because you're still reading my journal after all, do let me know.