I will advice people to avoid this site.
Your web3 gambling site domain was registered barely 3 months ago. While people are using noncustodial wallet to connect, if the web3 gambling site belongs scammers, the seed phrase or private key of the noncustodial wallet can be revealed and the wallet would be compromised.
What? Is this for real? I cannot process this because I am unsure if we will end up revealing the seed when we connect web3 applications and our wallets.
Just being curious I did search about the risks of connecting to the web3 application and I got shocking results too. But I am more or less disappointed that why such a nice casino has to go down because of the few bad examples.
I am not supporting anything here but it's disgraceful to see how these new-generation applications are not strong at their security.
No, it's not possible for a malicious actor to get your seed or private key of your wallet simply by connecting the wallet to a Web3 Dapp. At least, as far as I know, that hasn't happened yet. If it did, that would be a mega screw-up in the whole smart contract world.
There is a potential scenario where connecting your wallet to a Dapp could put your funds at risk if you're not cautious. If you approve a transaction that you shouldn't, there's a chance that the Dapp could steal your wallet's funds. I believe this is biggest security risk, but it mainly depends on folks not paying attention and being a bit clueless.
By the way, your quote has nothing to do with Web3 or Dapps.