Instant signup bloated my user database. Note to self: remember to create user records in the database after the email is verified; mean while save user records

Instant signup bloated my user database. Note to self: remember to create user records in the database after the email is verified; mean while save user records temporarily by their session key. I have a chunk of 100 or so users whom I am not sure will ever come back. I have a MOTD message waiting for them the next time they login, if ever, asking them for an email address. In the mean time I have to skip that chunk of user IDs in my reports and analysis.