In the short amount of time it took me to read this thread, 5 new cryptocurrencies were created. 
Rofl , made me laugh to death
@OP Everyone is free to create his own coin and I don't see what bitcointalk forums have anything to do with it
That is true. The only way to stop scams is to not be an idiot. Almost every new created alt coin is will be useless. So stop investing in dubious coins. Maybe some big ones like PayCoin is secure - but time will tell. For now observe.