I don't think it is so much a problem with capitalism so much as it is that there are 100+ million items listed on ebay, daily. They are items that are sold by individuals so 100+ million items need to be moderated. I am sure it can be a daunting task especially if items are mislabled or the discriptions are not complete. Firearms and knives that exceed 3" are a no brainer for the moderators but lasers are a specific technology that they may not know enough about to moderate accurately. This isn't WalMart who knows exactly what they are selling because they, themselves, buy from their vendors and sell in their stores/online. I could be wrong but that seems to make the most sense to me why some of this stuff slips through the cracks. This is where ebay is community moderated. People like Steve and Jon and anyone else who warns ebay about these items may actually help the community. Also complaining to other agencies helps stop these things at the ports as well. Customs has done a nice job stopping Wicked Lasers from coming in but they still get through here and there. The more we complain and warn, the more this stuff gets flagged.
If you're the smartest person in the room, then you're in the wrong room.