I'm sure most people can remove the sticker without any actual consequences, but some people, like myself, either haven't or don't want to and in some states where both emission testing and safety inspections are required the warning labels are also checked. This is why there was a recall back in 2014 for items that were not properly labeled; if they weren't looking, this would have not been an issue.
Either way, I assumed that this wasn't something that everyone would want and it is why I am posting a feeler thread first instead of just getting a blanket quote for a few quantities. As I rather not spend a lot of time and/or money on having them created if most people are not interested.