Something all websites are having, specially when free rewards are in place, like faucet, tips, vouchers and so on.
Whether or not other websites are doing it is irrelevant in my opinion. The policies and minimums currently used on the website make it impossible for a small stakes users to play and enjoy themselves. If they deposit 20 doge, and turn it into 60 and decide to quit, they will quickly find out that they cannot withdraw their coins unless they make an additional deposit to meet the minimum, or if they get extremely lucky and double their deposit 4-5 times over.
Not everyone has the means to deposit additional coins to meet the minimum. Even if I did, I should not have to go through the hassle of purchasing additional coins from an exchange, transferring them to crypto.games, eating the transaction fees to get my coins off of the site; just because your company wants to prevent "faucet abuse".
Deep down I think you know why the policies are truly in place, it forces players that make small deposits to continue gambling their coins in hopes of meeting the crazy withdrawal minimums, and the house always wins. Of course you guys are going to make every excuse in the book to not review/revise your policies and to keep the crypto flowing in; never out. Potential players should be aware of these things before they decide to make a deposit on your website and send their coins to an account that they will likely never be able to withdraw from.