In the case of BFG, a stable exchange rate says nothing and doesn't indicate any prospects. The BFG price is not particularly volatile because almost all the circulating BFG supply is staked on the Betfury site. In other words, BFG holders don't want to sell BFG tokens and prefer to hold them for interest. This is not bad until some whale with a huge amount of BFG tokens decides to sell them.
It doesn’t have any trading volume either so this kind of holding is not helpful because they earn new BFG tokens added on circulating supply. This holding is really good if the reward they are getting is not BFG token itself that will not flood the supply.
Having no new demand while the supply is growing with same people holding will just make the value of the token decrease in long term. This is same principle with fiat losing its value to inflation. Supply is growing because of the increasing supply without any new liquidity entering in the market.