measuring the characteristics of an artificially aged npub (the ones they grow in batches like sustainable farming or the matrix, depending, for the purpose of reselling in bulk to spammers) so that those characteristics can be identified to avoid manipulation of dumb systems that use only account_age as a dimension for evaluation. i.e. accounts that appear mature but are actually just harvested to resell will often have a few posts after registering and then nothing for x amount of time or a high percentage of duplicate posts or an identifiable posting increment. machine learning might figure this out faster