In just 11 years of cryptocurrencies existence we've seen a series of shitcoins coming up, making a choice on which coin to hold aside $BTC & $ETH $BET $DOT $ADA & LINK is becoming difficult, how best can I get to know more viable projects like the ones I already have? When will the proliferation of shitcoins in crypto space stop? Who will check mate the proliferation of shitcoins?
Shitcoin/scamcoin from altcoin to token will continue exist because scammer is need the money for living and buy new some car
just hold bitcoin and you will be fine and Do your own research before investing in new coin because i see ton of them pop out everyday 
It is really hard to eliminate those kind of schemes where that can make money by fooling others.
Scammers will do everything to have an easy money and that's the reality that we should deal with. Shitcoins are very effective for them that's why they settle on that kind of way of earning money, instead of investing their own money. These coins will continuously exist when the governments or the authority doesn't have any concern with that.
You should choose what to invest wisely so that you will not waste your money in these scams in the market.