This is what I quote from the link on the OP
When it comes to cryptocurrencies, invest in at least a few different coins. Such an approach can save your money – in case a few coins drop down, another one can keep the same price or even increase in value.
Investing in crypto during bear market? People should not completely believe that because they can invest and it may be the beginning of bear market, people should be patient and wait until the market has significantly fallen and not falling further for long time. Only some cryptocurrencies like bitcoin, ethereum and litecoin are advisable. I can advice someone to only even invest in bitcoin and DCA can be used.
I see other points to be valid but as for the last one which is staking, the coins that are staked can be very volatile and people should know that a coin that is staked can significantly decrease in value. I prefer only high marketcap coins. Bitcoin can not bebstsjed, but I prefer it to others because it is less volatile.