Never keep your coins on some exchange site, never invest your money in cloud mining services, never gamble all in. For sure there is couple more rules that people need to follow if they wish to not lose their money fast. I'm wonder often how many sheep's and wolf's there is on this forum, too many obviously. I don't get how they trust and believe in some services that are proven to be frauds, sooner or later.
Well I think there will be always sheep's and wolfs around, we can't do nothing to change that.