>>12194042Social media has a snowballing effect where the bigger you are, the easier it is to get even bigger with little effort as algorithms and suggestions do the work for you. It's why channels like Pewdiepie will STILL get tons of people subscribing daily even when doing nothing of note.
All of EN1 including Kiara and Ina benefitted from this time period (they got to 1m slower than the other three, but they still got there a hell of a lot faster than most other Holos), but Gura's "a" clip going viral and having a cuter design to the others (cute sells more than sexy or cool) helped catapult her up.