The biggest part of the scam is his silence towards all his clients. Depending on wich part of the world you live, everything comes with a warranty of somekind.
if 'silence' is 'the biggest part of the scam', there's nothing to see here.
above all other products, 'software' comes with no expressed or implied warranty. ever try to get money from microsoft to compensate you when windows crashes?
And do you have any other evidence, or is lack of 'respect' enough to be considered a scammer?