Recently, I came to read this news
https://protos.com/spanish-police-rescue-crypto-investor-kidnapped-on-holiday/The first thing that came to my mind after reading this was that one should not talk about his crypto investments with strangers or friends as it can pose various risks. If you are active on forums like bitcointalk and involved in trades, you should not give information which can help others relate to your identity.
Of course, especially in forums like this, it's always better not to give any personal information to strangers but at the same time let's also try to be real: kidnapping someone is a serious crime, if someone does something like that it's because they know that person has a lot of money, so someone in that position should always be careful. I don't think someone would blindly kidnap the average Joe to steal $2k of BTC.