I learn so little from a persons bullet pointed resume that when I don't have those the interviews feel like I'm pretty much walking in completely ignorant to this persons interests and skills over and over again.
When I can go "oh neat, jbob99 worked on a foss project I used a few years ago!" it's nice.
But I also couldn't care less about being "creeped" on. Half of my career was built because I'm not an anonymous random software guy and companies know my work.
You're using a completely random throwaway nick to stay anonymous on here, while I've literally gotten jobs from hn and grown my career from it. Just like I did on IRC when I was 13. It's an interesting difference of use.
I don't mean one is better or worse at all and I totally get wanting to be anonymous.