most of them aren't really at fault. they are just poor newcomers who entered a big market and were suddenly bombarded by a huge wave of advertisement which were promising them riches beyond their wildest dreams so they ended up buying a ton of useless tokens which have been continuously losing value
I Don't really agree with the "Most" part. Although I believe there are "Some/Few" people who got into the sinking ship, most of the people just thought it would be beneficial to invest in the shitload of tokens.
All those shitcoins in Yobit which get pumped daily shows us that there are huge number of people who still take part in the pump and dump and eventually lose their coins.
It's just the greed that drives them to their catastrophic fate. This is the sole reason why bitcoin should be the major part of your investments. I would consider investing 70% of my investment into bitcoin while the rest 30% into top major altcoins.