In my opinion, users should warn from the very beginning when they publishing their old paintings, that have been done before the contest, because it certainly places other participants in unequal positions.
Otherwise some talented cryptocurrency artist may show old works and win without making any effort during the current competition.
For example, one member received
165 merit at this moment for the picture which has been painted and sold in
2018.
Those who publish their old work may deliberately not explain if the work has been published. Because they think they will definitely get more appreciation. Meanwhile, for works that are actually just made a little, they get an appreciation. The jury must be more selective in determining who deserves to be a winner.