I tried searching for anything about it outside of Quora, and verified the reason he cited only that was that there was nothing else to cite. Granted, maybe there is more info out there and I didn't try enough different word combos, but a couple of unverified tales in Quora is not proof of something which contradicts KKK aims and policy. Big whoop, one ex slave commended them on their efforts and got on his horse a couple of times to join them for some ol' Southern BBQ'd Negruh or something.
I'm willing to put my money where his mouth is by reimbursing Carrick for the cost if he can apply and join, or even show me where the KKK says he can even consider it for a millisecond outside of April 1st.