Blog spammer and the 'innocent' comment

I received a comment on one of my posts recently, which went something like this:

'Hi, I've been a long-time reader of your and just wanted to share something? Please email me back. Thanks! Livia 3Bisto6liviasham4 gmail.com.'

I was sceptical and let it sit there.  Long time readers tend to sign on for updates.  I can spot regular readers in my stats by other means.  This was not one of them.

Today I did a Google search and found the same comment had appeared on a mass of blogs covering a whole range of topics from nutrition, travel, porn etc.

Whatever this person wants, they're clearly aiming to harvest email addresses.