If your real goal here is charity, you're doing it wrong.
His goal is charity yes, but only for his own wallet, made with rhino skin of course. Don't fall for it .
There was no charity, as there was no interest.
Your interest is to dump your premine/instamine, nothing more. Go sing that song to someone else, and let the Rhinos alone.
No I don't think he is wanting to dump. He may not know what he is doing exactly but I think he really wants to help the Rhinos. Why would he mine only 0.1%? He has been giving away 50'ish coins to people who ask.