Keep a track of your altcoins regularly and once you see the slackness in the team it's safer to switch.
It is not necessary anymore if you are only investing in potential altcoins like Ethereum. But if you are in these shitcoins and new projects, you'll gonna do that otherwise it makes you surprised that your portfolio had gone ZERO.
Investing in altcoins isn't a bad idea but investing in new projects is a different story and riskier. As an investor, we need to learn how to assess the projects before investing if we need to avoid losses. Scam projects are flooded in the market which is why we should be careful and cautious with them, especially for hyped projects.
This is very true. Investing and taking a risk is really different if you know what you are doing. Taking a risk to buy an altcoin that is not really profitable and useless in the future is just a waste of money, and investing is really the key to success and could earn you big if you invest in the right altcoin that has the active team and still on the development of a very long time like ETH except Bitcoin of course..