You think it's big now, just wait until July. Reddit's api changes are going to force people off of the site in droves. Right now it's a lot of noise and some movement, but a lot of the regular user base hasn't actually felt any effects yet. Once the changes make the site unusable for a lot of people there will be a lot more.
As someone who just deleted Apollo and tried to use the Reddit iOS app - this is exactly correct - site is unusable on the official app. People will flee.