Thanks for the warning.
Coins.ph is one of the biggest wallets/exchanges and just goes to show how dangerous all hosted wallets can be.
Use something like Electrum, it's just as easy to use but you retain all ownership of the private keys. Much safer and you won't be subject to the scrutiny and prying eyes of the government when it comes to your gambling pastime.
For bitcoin transactions, yes, it's always good to go with wallets like Electrum and if your balance is on the exchange, you have to make it through Electrum just to avoid sending directly from any exchange. They've become stricter this time due to the regulations that are happening.
I'm sure with that kind of prompt and anyone who is aware that gambling using the coins.ph is illegal will never proceed, it's a prevention not to be in serious trouble in the future, therefore what OP shared is very useful, anyone who put a gambling platform as the recipient has no idea about the law pertaining to this and therefore not aware of the consequences.
Yes, and that's not just for gambling but on the user agreement, there are many types of transactions that are prohibited to happen if you are transacting with the use of their wallet. Some users might not be aware of those and they keep proceeding until they've been flagged by coins.