...As you said, there are also trading contests that focus only on a few pair of coins. One of these coins must be new and it was like they are only promoting it. The rewards in the contest can also be sponsored by them (dev/team of the coin).
Yes, there are especially many such trading contests on the Bybit exchange -
https://www.bybit.com/en/trade/spot/token-splash Now the DEEP/USDT trading contest is coming to an end and I decided to take part in it. I have completed a trade turnover that exceeds 27 thousand dollars, for which I will have to receive approximately : 4,4k DEEP, which at the current exchange rate is equal to $270. Since there are still 2 days left before the end of the competition, I think I can increase my reward.

i really like the fact that these exchange just decided to make a trading competition on a newly listed coin which are still in the phase of volatility, it's just feels great when I trade on these volatile coin and I also received reward at the end of the event.
definitely a better event compared to back then where the only thing that matters is just trading volume and only whales could do that.
with these volatile coins, the whale are hesitant to make trade so it gives us the smaller shrimp a chance to actually earn something from the competition.
I've seen other events as well and usually it's always the new coins, I wonder if it's also partly coming from the project itself giving special allocation for the exchanges.