It's not a fact, but a first-hand recount of a first-hand experience. The bias of a person of themselves affects that on at least two levels: first, on how they perceive their own deed, second, on how they recount the perception of that deed.
Some times you can state facts and still be wrong in other ways.
Example:
If one side says "Hamas dresses as civilians" to excuse killing civilians, they're factually correct and criminal.
If someone then goes online and drops "Hamas dresses as civilians" they're factually correct and reinforcing a criminal's defense.
Anyway, the morality of IDF behavior is apparant to an impartial behavior by just considering the thought experiment that IDF doesn't killing Israeli civilians "just in case" they're Hamas in disguise. They only kill Palestinian civilians "just in case" they're Hamas.
I was banned from the France subreddit for saying Hamas fighters dress as civilians.
The problem of Reddit goes beyond astroturfing.
It's a judge jury executioner problem.
Moderation is the most expensive problem of online platforms.