The warning is accurate and people who don't want to lose their money should take it seriously, i don't recommend staking, especially when the returns is too good to be true like this one, an annual return of 30%-100% is very suspicious, though i know that greedy people would jump on it and complain of being scammed later.
Altcoins are centralized, many of them can censor and ban users as we can see it happening here, if you don't want to be censored or see your coins frozen, use a censorship resistant and permissionless coin like BTC.