Instagram has had several days where the app suffered a complete service outage (6/30/2012 and 4/12/2014), but even full service outages never garnered as many Negative tweets as the unintentional layout change.
Consumer happiness for Instagram fell to an all time low of 17% as a direct result of the fiasco.
For comparison, the outage dates had 23% and 21% happiness respectively.
The public backlash to the update rivals that of the catastrophic Snapchat redesign earlier in 2018, which dropped consumer happiness to 12% for Snapchat, resulting in a massive user revolt just prior to the company's stock getting cut by over 70% due to declining usage.
It remains to be seen whether this slip-up will cause a lasting decrease in consumer happiness for Instagram or its parent company, Facebook.
Unlike Snapchat, who stuck with the unpopular new interface for months, Instagram has already rolled back the update and apologized to its userbase.