I noticed this phenomenon. Often someone buys up all the proposed tokens with a small amount of trading (for example, look at SMT on hitbtc this night), and after a few days these tokens go up in price very much. Is it worth buying such a token?
There's always a risk of buying low-volume tokens. Low liquidity won't help you to save your investments in case of price dumping. So it's like a lottery to find a perspective token among pile of scam.