Using geth this should be possible, only thing is this plugins prefixes for config file strings are not correct. Maybe a work around I can make, however it would be nice to see native implementation since it is the top 3 crypto.
This is why they won’t let you deposit less than a fixed amount of ETH or ERC20 tokens. It wouldn’t make economical sense.They probably pay for the transaction to the centralized address from their other profits, but I’m not sure.
For a small scale site one solution would be to charge a fee on deposits. If that fee covers the transaction cost then you can have all the funds in one address ready to withdraw. The coin adapter would have to do the transfers behind the scenes.
If you do end up implementing all of this please post a link to your adapter. I would love to link to it from this site.