If I lied about Jehovah's Witnesses, I'd hide behind a mask too.
If you knew a disaster was going to affect your neighbor, and you tell him of this disaster, that is not threatening them.
Edit to David
I know and understand the truth about the Lake of Fire, it is "the second death."
This is not the death we inherit from Adam for which a resurrection is made available.
The second death is one where there is no hope of a second chance. A death where one will not receive a resurrection to life.
One reason is:
“31 “For this reason I say to you, every sort of sin and blasphemy will be forgiven men, but the blasphemy against the spirit will not be forgiven.” (Matthew 12:31)
“4 For as regards those who were once enlightened and who have tasted the heavenly free gift and who have become partakers of holy spirit 5 and who have tasted the fine word of God and powers of the coming system of things, 6 but have fallen away, it is impossible to revive them again to repentance, because they nail the Son of God to the stake again for themselves and expose him to public shame.” (Hebrews 6:4-6)
“26 For if we practice sin willfully after having received the accurate knowledge of the truth, there is no longer any sacrifice for sins left,” (Hebrews 10:26)
Those who do these three are subject to the 'second death'
A death from which there is no forgiveness. This person will be dead for eternity. Why because eternal life is a free gift given to the faithful.