I think you may have misunderstood me, I meant copyright issues are probably preventing you from modifying / fixing the rules mentioned not that you weren't crediting other people work. 
Sorry if I wasn't clear about that, I know you have permission and display credits. I was just concerned that rules with known errors in them are being distributed with hashcat. Hashcat has a good reputation of quality and I was trying to help maintain that ! In a tiny way but hey its something ! LOL
I have actually fixed these rules for my own use, although it does seem a shame I can't share them. Any way round it ?
Sorry if I wasn't clear about that, I know you have permission and display credits. I was just concerned that rules with known errors in them are being distributed with hashcat. Hashcat has a good reputation of quality and I was trying to help maintain that !
In a tiny way but hey its something ! LOLI have actually fixed these rules for my own use, although it does seem a shame I can't share them. Any way round it ?