I have found many times where I’ve wanted to mass delete users from a Mailchimp list – and this isn’t something mailchimp provide, so I’ve written a script that uses Mailchimp’s very good API to delete email addresses in bulk.
I’ve put this online for general use: Mailchimp bulk user delete
Somebody pointed out – how can can they trust this form? So I have put the code here – https://github.com/sprthompson/mailchimp-bulk-user-delete
I’ll create a few other simple but useful tools in the next few days.
NB – use sensibly.