Good on you for taking the initiative to propose Bitcoin to the higher ups. That is something I hope pays off in the long run for both you and the company you work for. I also completely understand not saying who you work for and associating the forum account with the company is smart IMO.
If he already knew about bitcoin then your impact was likely very small, but you rather just confirmed that he knows about bitcoin. If a lot of customers were asking about your store accepting bitcoin then it would be a different story.