The problem on investing with FUN tokens was its supply is very massive which is 10+Billion tokens in circulation. This kind of tokens usually very hard to be pump especially if the utility is just for the token. Although its circulating supply is already closed to the maximum supply, Lowering the total supply will be a great feature from this token since this is not the original native coin of Freebitco.in.
I dont know if theres a token burn feature of this token but adding it will surely gives boost to the price since the circulating supply is already near to the max limit.
Indeed, huge supply is always a cons when investing in altcoins, because it difficults token's price to rise.
But there is a burning feature already every quadrimester, as we can see on official FUN website. I mentioned this days ago in freebitco.in's thread, as you can see quoted below:
Well, this is good news, although the burned tokens correspond to 0,16% of total supply. The more they burn tokens, the better for stability and price increasement on long term. Results are quite positive, since the burning rate is increasing each new quadrimester:

Q4 2022 Burn AnnouncementCheck the link on the quote above for more informations.