Based on what the software does and the keywords I'm using in my PPC campaigns, I'm assuming those who download the software are beginners when it comes to building websites and getting traffic to them, etc. Therefor, I have written a sequence of helpful followup emails, giving them advice on getting back links, social bookmarking and more. To me, it's the kind of stuff that would helpful to someone who downloads 'website indexing' software.
However, now that I've started sending the followups, my unsubscribes have gone from about 2% to 16%
Is this high or what?