Funny enough, adults are also prone to bullying in large groups online. This does not go away later in life.

That is true and we have certainly seen our fair share of that.

Adults are however also better equipped to deal with that, especially if they have not been subjected to such abuse as children. It is worth noting that online bullying is however not the most serious matter here, rather (in my mind at least) it is the systematic targeting of kids/teenagers to get inside their head and get them to perform violent acts against themselves or others around them.