Google representatives have been in the webmaster forums helping webmasters with their SEO and webmaster related questions all Christmas eve and day.
There are dozens of threads that Google's John Mueller has responded to both on Christmas eve and day. Plus, Google's Zineb also has been responding today.
Of course, Google's lead spam fighter, Matt Cutts reminds us on Twitter that no matter what, spam fighting never rests:
@joehall the spam fighting never stops, even on Christmas. Hope you're having a good one.
— Matt Cutts (@mattcutts) December 25, 2013
One example is that Google penalized Rap Genius last night/this morning for link schemes.
This is not uncommon, where Googlers respond and help over the weekend. We see it year, after year, year, after year, year and after year.
I am sure the spammers don't like it but some do.