Community website, Reddit saw the most activity in the site’s history thanks to US President Barack Obama holding an open Q&A session on the message board.
Held on the 29 August 2012, Obama’s session attracted more activity than any other forum submission, and even more than the site’s front page.
At the end of the day, the site had accumulated 3 million page views, with the overall views of the specific page growing to nearly 5.3 million (as of 9 AM PT 8/31 – not accounting for stats lag).
Reddit has even given Obama a unique handle, “PresidentObama”, which was taken, but the original user had deleted it. Reddit dusted it off and assigned it to the current head of state.
Source: Reddit blog