Doge is not so good option cause:
1. Before we were receiving money directly into wallet with no other fees)
2. With doge You have to exchange for BTC (pay exchange fee) + transaction fee for sending BTC from exchange to wallet so rewards will be even lower atm + price volatility risk (even with auto-trade)
1. It is your choice whether to accept DOGE or not.
2. You should gather several DOGE payments together - that way transaction fee is minimal.