317% increase in a month is indeed huge. If it maintain its price until alt season happen, it could attract more buyers on CEX that it's listed. FUN token has real utility among gambling tokens in the crypto market so it has high chance to go even higher.
Any tokens has risk of being a pump and dump but holding some FUN token would be a good choice if it stays stable at this point. It's price is still not that high and a x2 from here can still happen.
Even after such a pump, the FUN token price is still at the bottom and far from the values that were before. Of course, investing in FUN token is everyone's business, but you should keep in mind that there is a big risk of devaluation.
In fact, the current pump may indeed be a good ploy to attract users who have no idea how Freebitcon is connected to FUN tokens.