For some reason... I don't know why... but it just works for a background process.
Would be a fitting reminder of today, ongoing. A tribute, as it were.
Send email to him (Community User) at team at stackoverflow.com , and ask him directly to change his gravatar to Unicornify.
I've checked his email hash, thats his email.
You may check his email hash at his profile source - http://meta.stackoverflow.com/users/-1