LinkedIn gives people's attributes in a standard, easy-to-compare format. That's worth a lot. (From my side, I'm happy to be listed in a standard format because, to put it bluntly, I'm a better coder than most of the people I'm competing with; I don't need a quirky site to make me stand out. That doesn't mean I don't have my own website (I do), but what do I lose by listing myself on LinkedIn?)

Gandi has a morality clause in their ToS; there are any number of good, cheap registrars that don't, so I'd say go with one of them instead.