Now when you see the lowest and highest you have a range and you can have fun with trading BFG... in the meantime, you can stake them, BFG doesn't have to be locked for that, so moving BFG from staking to trading and vice versa should be easy! I am not sure about farming, but I think you need to lock BFG for some time in order to farm...
I guess this is an individual choice, people are free to do whatever they want with their money! And if combing different ways is possible, why not? More things you do more profit you can make at the end of the day!
Yeah, the most important thing you have to keep in mind when trading or staking or farming these tokens is that the price of the tokens must not come down. Because if the price of tokens starts dropping, it simply means something is wrong or in simple words; there are more sellers for the coin than buyers.
I like the Betfury's entire system right now and some amazing VIP program was launched by them sometime ago which makes more people bet and hence more profit for the casino. More profit for Betfury means bigger pool for people who stake their BFG tokens and hence more value for the BFG tokens.