LBSH,
This community revives itself when the next game comes out, then dies slowly over the course of the games' life. Not just casuals, either. We've seen multiple people drop the game and come back, and some just drop the game.
Just to name a few:
Noble Jupiter
cR Honeybee
Tom Brady
PL
Pig
People have their reasons for not continuing, and everyone has their life to live. That's not my point here. My point is we have things like Twitter/Twitch at our disposal now more so than ever before and the words we say is what resonates to our audience.
Some people 'follow' because they're a fan
Some people 'follow' so they can keep up on news
And some people 'follow' to troll
Regardless of why they do, we have a job to do for OUR game and to ensure we continue to make it seem like its the best thing in the genre. This is where everything falls apart. Our community SUCKS at this.
I see it far too often that fans get ignored when asking for help/games/have a question of any sort. Sometimes they'll be graced with a 'like' and never actually receive an answer of response and hell, throwing them the 'like' only makes them feel even more ignored because they know you saw and read the message.
Our community would sometimes rather whine and cry about things that were completely avoidable in game and blame their loss on broke/dumb/busted whatever than to just give props to the opponent, slightly mention what caused the loss (lag being a huge one), and go about their day.
On the flipside, all of you who lose 30 games out of 31 and upload that one match and pop off... You're the problem too because we aren't going to play randoms who even we have a slight suspicion of. Top players, just like competitive players, want to run casuals but the attention seeking can lose you everything...
Cheers.
TLDR: it probably won't do much anyway in the grand scheme of adolescents.