2- For example, if you want your Ether holding to always be worth 10% of your portfolio, but Ether rises in price, increasing its worth to 30% of your portfolio, it will automatically sell some Ether to balance out your portfolio.

3- My personal background is in the hedge fund industry, and I can tell you firsthand that even hedge fund managers use rebalancing tools on their portfolio. Traders of all experience levels can take advantage of these rebalancer crypto tools.