It's a literally a cycle. This is the whole reason why we say history repeats itself.
It goes like this:
1: Idols gets accused of bullying and usually gives little to no proof
2: Fans start saying "Let's stay neutral" then end up taking sides anyway
3: Agency releases statement while more groundless accusations come out
4: Idol apologizes and goes on hiatus OR the rumors eventually die down
5: Repeat