Thanks to the pamp and dump the crypto market is so attractive to many. Thanks to this, many can earn here.
That's not really true. In all cases it's only a select few people (probably below 5%) actually manage to book any profits. The majority of the people are the losers providing the winners with profits. Money doesn't grow on trees, where you have one winner there are like a dozen of losers.
If there was no price change, then no one would buy currency, because there would be no point in that.
Crypto in general has barely any liquidity to it, so even without pumps there are enough opportunities to benefit. The only difference is that those who know what to do and look for can book profits within very tight ranges, where the noobs need massive swings in order to profit.
Also, while the majority of the people are only here for the speculative aspect, the rest is here actually for the utility. There is always a point to buy crypto.