When i started there was no scamming because everyone knew everyone :p

But thats was a long tim ago, i think it ill get worse and people will try to find new ways of gaining money quickly, look at how many people ask whats the quickest way to earn money. Im not saying every single person who ask that will revert to scamming but i bet a few people think about it.
I dont really get scammed purely because i dont need all the fancy stuff like enchantments and melon swords... i prefer minecraft without all that nonsense...
I give money away and help people when i feel like they need help, some people have probably got money off of me that dont need it but i wont give something away if i want it back, im prepared to give it to someone as an act of kindness...