We recently updated our automated email workflow, which triggered few hundred emails for old subscribers who may or may not have created a DJ profile. We needed to do the change for keeping the mailinglist clean but unfortunately there is not enough data for old subscribers so you might have gotten the email unnecessarily (if you didn’t open the original DJ invite email or your email client blocked the data).
If you have already created your DJ profile, don’t worry you don’t need to do anything and you wont be removed from the list. (But if you want to, you can, and then your DJ profile will be deactivated too.)
If you haven’t yet created your profile but want to do so, then follow the instructions and you’re in – yay! Welcome! 
Finally, if you haven’t yet created your profile and you don’t want to anymore, that’s ok, you don’t need to do anything, we’ll remove all your data and unsubscribe you from the mailinglist automatically in a couple of weeks. You won’t hear from us again. Sorry to see you go!
In the future, this process will be fully automated and hopefully we don’t need any more purges like this If you have any questions, fire away!