Now people became more experienced and did not make of mistakes 2017.
On Ethereum blockchain now there are many Defi projects that are actively developing.
The problem of many tokens is that they do not have any practical use and used only for speculations.
But even speculations allow people to make money. There are a lot of cryptocurrency exchanges.
Now even there are platforms like https://www.qoiniq.com/ that allow to trade from different exchanges at the same time.
Now defi projects are very popular and all of them are on Ethereum blockhain.
It is good that new tools appear for comfortable trade because a lot of people try their forces in trade and they need good tools.