Deleting fe_users should also delete references to tx_auxnewsmailer_usercat
Deleting fe_users (either through BE or a user cancels his account with sr_feuser_register), should delete tx_auxnewsmailer_usercat referencing the fe_user
It is not causing any bugs, but may lead to performance issues with unecessary data records.
Same with the extensions other tables.
#1 Updated by Jean-Sébastien Gervais over 7 years ago
To remove related records in tables
when deleting a user from the backend, a processCmdmap hook does the trick See revision 66265 and 66266
now, when deleting a fe_user from the front-end (for example, closing your fe_user account from extension sr_feuser_register, aux_newsmailer needs to be informed about it. Either through a hook from sr_feuserregister or a similar hook in the frontend i'm unaware of..