This morning Gabe Newell was set to take part in a reddit AMA (Ask Me Anything). Gabe initially posted an announcement thread, and people posted questions in there. Reddit mods weren't too happy with that, and began deleting comments, with the hope that Gabe Newell would set up a new Reddit thread when the time came, but that hasn't happened yet. And no-one at Reddit knows what the hell is happening.
In an update posted on the AMA subreddit, the Reddit mods stated the following:
Hey everyone: just wanted to give you an update on the status of Gabe Newell's AMA.
Earlier this morning, he posted an announcement saying that he was planning to host an AMA later this afternoon (4 pm EST, 1 pm PST). The moderators responded with information about how to submit his AMA when the time comes, which we normally do with announcement posts. The thread was then locked the thread (disallowed new coments) and removed all other comments so that this information would be the only thing visible, making it easier for him to find.
Unfortunately, since then, no one has heard from Mr. Newell. We've been constantly monitoring his Reddit account, and the admins have reached out through their contacts at Valve. But unfortunately, after an hour of waiting, we have been unable to confirm anything. It is possible that he intended to answer on a different date (which does occassionally happen sometimes).
We'll keep you all up to date, but we know this was anticipated so we wanted to make sure you know what happened. When we do get in touch with him, he will either create a new AMA, or possibly will be added to our calendar, so keep an eye out both there and the /new queue. Just to be clear: there is no indication that the AMA is cancelled; just that we don't know when he plans to actually come answer questions.
Thank you all for your patience, and we're all looking forward to this AMA.
Hopefully the AMA will still go ahead. We'll update when we hear anything further.