Digital Decay? Tracing Change Over Time Among English-Language Islamic State Sympathizers on Twitter

Until 2016, Twitter was the online platform of choice for
English-language Islamic State (IS) sympathizers. As a
result of Twitter’s counter-extremism policies – including
content removal – there has been a decline in activity
by IS supporters. This outcome may suggest the company’s
efforts have been effective, but a deeper analysis
reveals a complex, nonlinear portrait of decay. Such observations
show that the fight against IS in the digital
sphere is far from over. In order to examine this change
over time, this report collects and reviews 845,646
tweets produced by 1,782 English-language pro-IS accounts
from February 15, 2016 to May 1, 2017.