For a starter, I hate been redirected out of forum to go read some article, if you're the original owner of article then post then on forum and you can add a source link at the end for reference purpose or indicate you're the original owner of article to avoid been accused of plagiarism.
In addition: There's a disadvantage I have noticed in the past project that carryout their crowdfunding through IEO which is very disturbing. The whales are manipulating the sales, they buy all the token in matter of sec/mins leaving the average investor with no token to buy which is bad because this guy's can easily manipulate the price of this coins/tokens when they hit the market. Exchange need to find solution to this issue which could be solved by putting buy limits on each account.
On most exchanges this is no longer there , one person can not buy all the tokens for example on the exchange binance you can buy up to $ 1500 , and plus to all this lotteries work , I think you need to participate in the ieo , and if you're lucky you will earn well in this market!