Ask HN: GitHub-based spam/scam emails

Hi, I've recently received some emails and I've been wondering if they're spam/scam based on my GitHub profile or if they're actual people interested on me.

Here's the very first one I got - http://i.imgur.com/VDOJPEd.png. I'm pretty sure that one was a bot because I had this repository on GitHub called "HTML5 2D Platformer" but I had deleted it long before the email though.

And here's the second email which I got 7 days ago - http://i.imgur.com/i0Z3urZ.png. I don't really know what to think so I replied him - http://i.imgur.com/q142wP2.png.

I'm pretty sure they're bots or scam/spam, but I might be getting actual interest because of my GitHub profile[1]. Has anybody else getting these emails? What should I be doing about them? Thanks in advance guys.

[1]: github.com/davidgomes