These exchanges are indeed not recommended, I am surprised, there are still those who are participating in their IEO. We have to do a deeper analysis, not easily provoked by the tagline: tokens or coins are already listed on the exchange. We have to really check whether the trade is feasible or it's just manipulation to attract attention.
Just as fraudsters used ICO when it was popular, now they also use IEO to cheat. That is why IEO which is carried out in trusted global exchanges like Binance will get the most attention.