I did the [Make a Lemmy account] sub-quest. Now, the [Waste time on social media] ability decreases my [Self-Esteem] (or [SE]) stat less and boosts my [Happiness] (or [HPN]) stat more. I think I did the right choice for my character. I also completed the [Remove comments on Reddit] sub-quest, I only have the [Delete Reddit account] quest left. I'll probably do it the next in-game day, during the [Reddit Blackout] event.