I believe that the projects that go on IEO on the major exchanges give us a good opportunity to earn money, but you do not take into account the fact when you need to buy tokens and when to sell, this is one of the important aspects to make a profit.
From what the results binance launchpad did, focusing to invest with IEOs which been offered inside this exchange is really interesting.
Do some research and analyze the sale offering and take your chance who knows how much growth the token will be after investors fomo's
to buy and invest their money.