If anyone wants to see some of the negative effects of a persistent 'social score' that affects real life I recommend this Black Mirror episode: https://en.wikipedia.org/wiki/Nosedive.
I mean, guests at the party (spoiler) should be amused at the ghost of the maid and the scandal, filming it and all - especially young guys. It should go completely viral. Instead they stand frowning as if they're 70 - to avoid hurting their score.
Under social credit society, everybody will be forced to act like they're at the end of their life path.
And then there's real content, viral content, assertive content. In short, life. Social credit system fights life because life doesn't follow rules, life doesn't care about likes and life doesn't climb their ladder. So naturally I expect harsh sanctions for anything viral or any unexpected flash mobs in such systems.
Once a system like this is in place it will be abused. It's practically designed to be abused. Where is the accountability?
In this case, it's the government giving you a score.
Once thing I kind of liked about that episode is that it was backwards from a normal Black Mirror episode. Normally they try to make the technology look fun and useful at first before they do the flip and make it horrible and dehumanizing. This episode started out like the end of a normal episode and ended with the main character doing a white girl rap battle with some random dude.