I don't think this is a bad idea at all but I ultimately believe that bitcion wil reign supreme at the end of the day so those slow adopters do so at their own loss. I'm not going to pester anyone into accepting it. If it never grew more than the level it is now I would be perfectly happy. It serves my needs fine - I can buy gold and I can buy national currencies with it. With those I can buy anything else.
My concern is that if the volume of bitcoin being used for illegitimate things is significant compared to legitimate uses, we are more likely to see aggressive government regulation which will slow the spread of the currency. If the balance is tipped towards legitimate uses (like wordpress etc) before regulation occurs it will be much more difficult for government to justify regulation, and much easier for the community to argue against government intervention.