Around 4 months ago, someone has IP logged me, and is threathening to DDoS attack me, if I am not his slave. He was breaking the Discord TOS with all kinds of stuff in my DMs. I blocked him, but one of his friend told me to friend him back, or he will DDoS me. What should I do? This is all happening on Discord, for more than 4 months now... (he has my public IP address...)