As of August 2018, there are over 1600 cryptocurrencies that exist, according to Wikipedia. I know that Wikipedia isn't the most reliable of sources because anyone can edit it whenever they want, but the point is the number of cryptocurrencies being introduced. Some of the new cryptocurrencies I've heard were DeepBrainChain, ByteCoin, IOST, and Elastos. There's also a new coin called
Virie, which is apparently a cryptocurrency used to crowdfund and jumpstart the Virternity Project, a project that aims to digitized our minds, economy and the society. I believe that not all new coins aim to scam people, but do we really need more cryptocurrencies? Do we need new cryptocurrencies for every project that exists? Why can't there be one or five cryptocurrencies that all projects can use?
I will not comment on the number quoted by Wikipedia, but it's indeed true there're many cryptos in the market and it's very difficult to keep a track of those. I have always preferred quality over quantity, but when it comes to crypto world sadly that's not the case. There's nothing one can do expect weed out the spammy coins and if interested collect decent ones, while I don't like alts I have added few to diversify my portfolio but I'll sell them as soon they rise and buy more bitcoins.