Haltiamieli is a Finnish word meaning Elf-friend, or literally 'elvenmind'. I am from Finland, 22 years old at the moment and studying information studies in the University of Tampere.
I have contributed very little to the Tolkien Gateway's wiki, mostly because I can't spare enough time for this, and so much is done already. Sometimes I might make minor corrections, though.
Also, I channel most of my energies for our own Finnish Tolkien wiki-project called KontuWiki. Mother tongue must come first, and I suppose Tolkien Gateway has enough contributors even without me (though of course, there's never too much people participating).