Bless those who persecute you; bless and do not curse. ~ Romans 12:14
When others are pouring hate on you, keep your focus on God's best for you instead of focusing on your disgust for them.
Yes, you may have a few salty words for that person when you blow off steam, but keep your mouth off their soul - it isn't your place or your job to curse them and wish them to hell.
Sometimes the best way to bless those who rail against you is to pray they find peace. Pray for your enemy right now - and release yourself.