4. Should alt coins be traded rather than HODL?
Yeah, I guess so that most of them should be traded.
I agree, because in my opinion some altcoin are better for trading (only certain altcoin are good to hold for the long term), because the risk of investing in altcoin is very big, so if you have made a profit from investing in altcoin, then I suggest you to selling immediately, because if you want to invest for the long term, then you better to hold Bitcoin.
If someone invests in altcoin and waits for a long time, then it will be a big mistake. Because the profit that can be obtained by short-term trading in altcoin, it will be a big risk to get the same amount of money by waiting for a long time. That's why I think altcoin Also we have to choose Bitcoin. I always prefer to trade with Bitcoin because it is the most popular for me to trade.