Here's a scenario: You're a fast-growing Web 2.0 service under fire for your shaky uptime. You need to reassure your devoted but increasingly grumpy users that you can stay online during the Super Bowl. So you post a notice touting the merits of your "trusty infrastructure provider" - which just suffered a 10-day outage on one of the services it hosts.
It doesn't make sense to me either. (UPDATE: Apparently it didn't to Twitter once they thought about it. See our update.)But the folks at Twitter seem to believe that the time was right for a post titled Happy Happy Joyent, which notes that Twitter tends to be mobbed during large shared events:
It makes us glad that our trusty infrastructure provider Joyent has us covered with extra capacity