How Bullies Work
Something similar happened to me a few years ago. I will add that someone who knows a bit more about you can do even greater harm but remember, they are on the internet and likely have no way to actually harm you. (I grant that some can. This is NOT supporting doxxing.)
Don’t read too much into raging idiots. They are punching blindly and happened to connect. Keep your guard up and keep doing what you are doing.