Staking cardence bitmart

Salam

I understand that staking is permissible in some cases but a discussion in the IFG crypto group took place and I can’t seem to understand why staking $cardence on BitMart would be seen as impermissible.

Please look into this .

https://coinmarketcap.com/currencies/cardence-io/?cf_chl_jschl_tk=pmd_zMtTLx6CYprTENX0XAv6GywciryxGLY6jF6aOEFIA3k-1630441220-0-gqNtZGzNAeWjcnBszQnR

Jazakhallah