You could profit but don't forget to mention you could instantly lose in this scenario too. That is why this high risk high pressure scenario isn't followed by many, and it isn't because people don't like money. Because these kind of trades are hard to execute and require much studying of blockchains, orderbooks, richlists, and everything in between there aren't many day traders.
That's right. As much as you could get instant profit by striking out rich in good trades and deals on valuable coins, it's pretty much easy to also lose your investment in the trade market. It's a risky market because it's more of an active approach to do business in the trade market, but there's also lots of possible alleys for you to lose your investment, and that's what makes it very difficult. However, if one would really study and be diligent with doing business, then there is always that chance to get that "instant" profit in discussion.