Your office is supposed to be (in most cases) a professional environment for conducting business, but everyone has a holiday party each year... Just sayin.
ref: http://en.wikipedia.org/wiki/Festivus#Airing_of_Grievances
All the other stuff – sarcasm, jokes – is not always downvoted, it sometimes even receives a lot of upvotes. Don’t expect every joke to be upvoted, even if it’s a witty one. I guess it is consensus that we don’t want to see HN flooded with jokes and sarcasm.
Edit: I suppose the moral of the story is: if you're not sure, don't post it.
A great profile of Julian Assange might be worthy front page material if it is the first Wikileaks article in months, it probably isn’t if articles about Wikileaks were on the front page every day the whole last month.
I really don't feel this is worthy of a big debate, though. My position is that HN is not a place for religious discussion, positive or negative, unless it has a more overreaching intellectual purpose. There's not much more to say.
Hacker News is a news site, but it is also a community of hackers. If a HNer needs a place to stay in Mountain View or is in trouble in some other way, I would try to help them. As such, the occasional touch of a human element is appropriate. I feel it is acceptable to send my fellow hackers the traditional good wishes and cheer as my civilization (and most of theirs) have done during this time of year for generations, while not seeking to be exclusionary or force my beliefs on anyone. I see it as the digital analogue of taking a moment of time at a technical conference to tell my colleague that I hope his family is doing well. I would hope he wouldn't snap back at me that it was off-topic.
It seems that aggressive atheists are more annoying than Christians nowadays.
At any rate, I highly respect the quality of HN, and will try to keep this in mind with future posts. Happy Holidays all the same!
And this does not go with the thank you notes. They are usually appended by a little brief of what people helped them with and which advice they did pick (or not pick). There are also (sometimes) analysis of what happened next.
Edit: Also personal comments also do not belong to HN
I'm going nowhere with this post. :P
But this is "Merry Christmas" which, if you think about it, is a holiday almost all of us (globally) share :)