You’re right that we can’t know anything about anyone online 100%. But it’s kind of an unnecessary existential crisis to say we can never know if someone is guilty or innocent. I think in order to function we have to assume 99% innocence, if that makes sense. Emotionally speaking it’s difficult, especially if you know what it’s like to not be taken seriously, but I think it’s important to not let that cloud empathy for the wrongly accused. Consider all the innocent people thrown in jail because of false accusations, almost always through racist and classist narratives. (West Memphis Three, Central Park Five) Take everything with a grain of salt, not a 100 kg of salt. If evidence leans in one direction (even though it is ultimately unverifiable either way) it makes the most sense to treat it as the truth.