If you look at the top 20 exchanges in coinmarcetcap , we see that half of them created in 2018. That is the year the charity was able to get one of the best. But now, the competition between platforms much more so to be among the best.
It's true, the competition in the crypto world is high now, we need a strong marketing plan.
Yeah majority of those are just made for wash trading purposes, you can clearly see the volume of top coins compare to other alts that is listed on those exchange, a good indicator that its just wash trading to get a better ranking in CMC so they can ask a hefty fees in listing fees in every coin project wanting to get listed.