If someone publicly posted a death threat here, report it. That's not allowed.
Removing personal information is a pointless reduction in freedom. If someone found your personal information to post it, then anyone can find it (probably very easily).
You should report the threat to police. They won't do anything about it, but the record of the threat will be helpful in court in case someone does attack you and either you or attacker gets injured.
Thanks for replying theymos. Here is the quote of the post :

This user is trying to frame me as the developer of an alt-coin called SilkCoin and is spreading my personal info everywhere and organizing people to put a death bounty on me.