Do you know that you can actually trace IP Address of the comment being posted to your blogspot OR email?
You dont have to be an IT graduate to know one. If you are an IT graduate like me, it's as simple as ABC lah..
Here's the quick quide.. There are a lot more posted in the internet.
You can only guess, including the location. But if your blog has low traffic, it can be a very good guess to the point of certainty. Tracing an IP address is actually pretty straightforward, and even though it's not always possible to track down a specific individual, you can get enough information to play the guessing games.
Happy tracing people ;)