[webglfan]

You are right: it is silly, but also, given the amount of robo-calls in the US, cold calling someone you don't know is a good way to be put on auto-spam.

If you really want to reach out, his email seems to be the way he prefers to be reached, so that's what I'd recommend.

PS: He did some commits to his personal website about 1.5 years ago: https://github.com/Hopding/Hopding.github.io/commits/master