So if you do 1000 optimizations the ones stored is pretty much all the same. And since we have no stats in regards to how many optimizations had an positive outcome we have no clue if it is a robust strategy or not . I mean if only 5.2 % ( 52) of 1000 optimizations have a positive out come I would not trade it.
looked it, the problem is only in configuration. Also in Optimizer you can set how many strategies you want to have in databank, and the default value is 50.
So if you want more change it in Settings -> Ranking