Four is still significant as compared to one or none in the cases of other users. The possibility is as follows.
The 'system' repeats recommendations for the same position or region until the user buys one or two players concerned with that particular region from the list. Once the requirement is satisfied, the 'system' switches region, and the next recommendation will likely to consist of players having other positions assigned.
quit this game (23/08/2015)
started playing again (13/03/2016)
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playing (11/12/2016)
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playing (May 2017)
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playing (22/07/2018)
quit this deceiving game (24/08/2018)
playing (02/09/2019)
Final Quit; Enough is Enough (10/12/2019)