Membership Moderation

I would love some way of doing membership purges by way of a membership search to see when a person has logged in/when they last logged in and doing a mass deletion.

This could also be used to send out a brief "hey, don't forget we're here, come back" email (via mailchimp, or another mailing list site, or the site itself, depending on how many people are in that block).

E.G:

• Do a search for all people who haven't logged in for 6 months
• Collate all these people
• Send bulk email saying "you haven't logged in for so many months, please come back"
• If they don't, offer the option for the site mod to delete them from the database.

I know that this is sometimes frowned upon, but I have a small site with a relatively large membership - grew to over 600 literally overnight - and the majority of those people haven't been back since that one visit.  It gives a vastly over inflated view of site membership, causes drag in the database and would be better off purged.