[Serusers] Automatic purge of users

[Damien Sandras]

Hello,

I would like to know if SER stores somewhere the last "registration"
date for a given user. 

I have looked at all tables and couldn't find such a field. 

So I would like to know if there is a recommended way to automatically
delete all users who haven't logged in since more than x months?


Thank you,

-- 
 _      Damien Sandras
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