When you look at the prices of cryptocurrencies you can see people have bought at really high prices. If you have bought $1000 worth of DeepOnion for example at the price of $19 then you would be left with $86.42 worth of DeepOnion right now. But even at these low prices right now you can still see lots of dumping going on. Logic would tell you to buy as much as you can at these low prices and hold for the next bullrun but the opposite is happening. There are some ups these days but it get's dumped very quickly. I believe we haven't seen the bottom yet.
Crypto is not as weird as you have stated, what you need is the ability to understand its true nature. Always do your research before investing in any project before you fall victim of dumping. Thanks