Minute by minute update is done to build anticipation, and so that those that are on the fence about going might see the updates and choose to go because everyone else is
Its also just good customer service and generates a bit of positivity
The way I see it, doing a tweet that takes 30 seconds and gets a lot of retweets (thus a wider outreach) is worth it, even if some see obsessing over attendance (we’re not) “cringey”