Isn't that the risk of hacking our personal wallets, and of course as gamblers we will avoid problems like this unless we use another wallet or spare wallet that is only used for gambling.
It's why when someone need to gamble by directly connecting their wallet, they need to treat their wallet as the account, which mean only use that wallet to gamble. Don't forget to use revoke.cash to make sure the wallet isn't connected with the casino anymore.
Is there a forum ban on inserting links in created topics?
I really have not seen such here. I believe you too have observed it yourself. Possibly it is not allowed here as you can see for yourself that majority of the topics here have no such features and as such are not clickable to redirect you to another page outside that of the platforms. You could try it yourself if you can but doing such, you should know that you are liable for your own actions.
It's fine, there's no ban too, the chance is only your post could be deleted by moderator, that's all.
However, if you are using the forum as a publishing platform to host something really substantial and useful, selling ads in that substantial work is allowed. To be eligible for this, your post must be in a topic that you started, and your post must be substantial and long enough to make the ad seem entirely insignificant. If in doubt, ask me.