You weren't to bad, I'm sure he didn't take anything to heart. After all he was probably right.
We all have our titbits (I said tit in a word!) of information but Coco knows his shit. He might not be correct all the time but he has such an in depth knowledge of Cannabis history, strains, breeders, nutrients, grow room set up's etc and spends the time to answer Q's in depth. Can he come across as an arrogant arse hat? Yes, but so can I. I for one have learnt more from him than any other 5 people on RIU combined. You don't have to agree with him but you should listen.