it seems very difficult to take legal steps for bitcoin con artists, but there are still ways to specifically detect fraudulent sites, first we must learn whether the site makes sense or not, second before we make a decision we have to ask elders in bitcoin often, third for those in developed countries you must complain to security forces about scam sites because their integrated financial system can detect and can take legal steps, it does not apply to third world countries, because the state does not recognize bitcoin as a currency.