Have read most people topic and comment especially the newbies and have noticed that they are always interested in trading more than holding, and of a true trading gives more profits from my own understanding that is why everyone wants to venture into trading. But have we also considered or remember that most of the compliant here is about trading scam or exchange scam. Since is as a cause of trying to fund their account to trade or either trying to withdraw funds from the exchange.
I have a different view to yours as though people could initially want to trade more but over time that it has taught them enough lessons, they always reverse back to invest their cryptos, or better still, try to engage in both trading and investment, but now, with less trading and more investment. This is my experience based on the testimonies of people and they often testify that trading is way more difficult for them with a high risk while investment is a lesser evil if done properly, and more reason why they abandon trading pretty fast.
It is those newbies who are not well-informed who are so kin to trading even as they believe it is their area of answered prayer, but neglecting the fact that even though trading is opened for all, it is not for everybody by virtue of its risk. It is only meant for seasoned traders who have won the test of time by consistently earning for a long period. The expertise and success of these kinds of traders are not questionable, and it is not all traders who can get to that level regardless of how many years you've been trying to make money out of trading.
But I do not know where the scam is coming from relating to crypto trading to the point that it looks scary the way you constructed it. Fine, those traders who are trading with huge amounts of money could still be affected by the greedy exchanges, but for traders to be trading with about $50,000 or less. Still, I do not believe there is much issue with good exchanges regarding this. Unless you are trading with bad, new or illiquid exchanges, and by that, you are inviting issues to yourself. It is good to trade with the top-rated ones, this will however not completely exonerate them from all faults, but the money would have been so huge before such complaints could be happening, which I also believe will still be recovered like the ones I have read in the past.