My blog is about 7 months old. At my current level I usually get around 100 sessions per day. I have always actively filtered out all ghost referrers as they appear and thus should have virtually none of them appearing in my Google Analytics data. I have also checked the box that instructs Analytics to ignore "known bots".
So I'm wondering after all these measures, how many of my sessions each day should I still reasonably chalk up to bot traffic?
And a side question, is there anything else I can do to make my Analytics data more accurate in detecting only real human traffic?
One thing you could do is add an invisible link to you main page anyone clicking on the link has a very high probability of being a bot.