Listing on huge exchanges such as bybit or binance requires big amount of money. Being listed on poloniex is still a good news meaning that the team is still active in the development of their token. It's good time to accumulate some of it now while it's not listed yet. Imagine the pump that would happen if it gets listed on big exchanges and gain more traction among traders.
I don't think that will be happening any time soon because FUN token has already attracted negative attention.
As already mentioned above, FUN token was also listed on Binance and while it did gain traction back when it was listed on it, there won't be any significant surge in price now even if it gets listed on any other big exchange.
So there's no point of buying FUN tokens now since many people already know that it is a sinking ship and nobody would want to risk losing their money espeically when altcoins are not performing that good this year.