First of all assuming you visited https://dogecoin.com I don't recall then recommending it, but even if they did they have a disclaimer they can't verify 100% reputability of anything external, but think that they are trustworthy.
Second of all, it's not a scam but the users of Dogecoin don't recommend it. It doesn't give you your private keys from what I've heard meaning it is a lot harder to recover your coins if you have problems. Make sure you have access to your keys if you use a wallet.