Well if people are making money with bitcoin's fluctuations then you basically can't tell them to stop. Fluctiations can be taken advantage of when you day trade that even bear markets can produce decent profit.
I dont see anything other than holding or buying the dip when you enter a bearish trend. Its the time to stock up and get ready for a bull market as people keep on making FUD comments in every social media. You can try placing order to test the resistance of the market and the market movement trend but in my opinion thats not necessary for those who are not trading professionally but as a hobby.
Of course it is, every other cryptocurrency around the stage is perspective to have this volatility that bitcooin has, so you basically can have your profit from all the different cryptocurrencies around.
Thats not totally true. If you enter altcoin trading you need to do extensive work on its history market and also the current price trend. If you can make money off trading it then its worth the risk though.
I believe there is a way like what's going on now that some people are chasing to make profits for a marginal trading or some switch in forex trading temporarily. The other way around is to keep on your strategy buy in dips and hold for a long term.