It's pretty easy to stay away from them. Just stay away from them. Don't download or mine them or do anything. Just ignore them. 99% are pure crap.
Easy to say.
People still have the get-rich-quick mentality. They do not care if its a scam as long as it pumps once.
What really amazes me is the people buying into the shitty IPOs. Don't they know its free money for the devs? Why would devs care if the coin succeeds or not - they already raked in some good btc for themselves?
You have to appreciate the entertainment value of watching bagholders support their coins to the end no matter how scammy they(the coins) are. This is when the real FUD begins.