I suggest that you should add a minimum payout that is less than  $1.5, So users that's using your shortlink services will continue to use your site and even more new users to come.

And the backlash to your payout system will minimize (i mean you have more payouts to cover to), plus Dogecoin is good coin too, easy to generate, low transaction fees and etc.

I hope you'll able to execute well your platform. Thank you