I don't think so but to my mind the answer is obvious because the number of scams has increased. It is difficult to define who is who. That's why a lot of people think that it is necessary to be careful with everyone
Yes, and I have encountered someone who were knowledgeable enough in Bitcoin and he uses it to scam people, and posting fake accounts regarding his kindness to help other people to get some profit. Scams were rapidly increasing nowadays we cannot stop and mandatory command someone jutst to believe in this forum without any assurance the he or she could gain some, this make people very suspicious for everything related ro money.