The problem is:
I don't think there are enough 'hardcore' airsofters who say "airsoft is what defines me." Myself as an example: airsoft is a hobby that I enjoy partaking in. In no way does it affect my life in any other way than that.
Furthermore, the jokes are only funny to other avid airsofters. So unless you're wearing it to an airsoft event, you have little venue to wear these.