Correct. Now try and sell something with zero support and see how well that goes for you.
Please consider the quoted remark in the context of the actual conversation, which is regarding a) retired products and/or b) freeware. Even Kevin has stated (and it is widely accepted) that freeware should not have technical support and it is only out of JR's goodwill that they do. If JR started selling unsupported payware rest assured more people will lash out faster than I can fire up Firefox; your statement is invalid, there is nothing to be sold here.
Kevin, there is no limit to human stupidity. Personally I'd just ignore and/or block the idiots who request support for content that is clearly labeled unsupported, but this is just me. It's JR's decision how they run their business and if I do come across a product that is no longer supported as N3V has done with their DLC, then I won't get to run it that's all. Regardless, thanks again for the work you do, JR support has always been impressive.