Hi Stephen –
Just saw this thread and probably (almost certainly) this feedback should go to feature requests or somewhere but I’ve forgotten to mention this for years now so I’m quick writing it here….
I would suggest making the checkbox for “automatically clear expired signups” UNchecked by default when folks first install the plugin rather than have it checked. I have many clients using your plugin and have a big note in my new site setup checklist to uncheck that whenever I install SUS. My clients have gotten really stabby with me if I forget to uncheck it — the first time they use SUS, their signup data is deleted and like the OP here, they wanted/needed the list of who volunteered for one reason or another.
I can understand that keeping the database clean is a great thing but maybe set this to delete that data after a month or X days or something – but not so soon.
Just some friendly feedback after receiving it from my clients using your plugin… which as always we love and appreciate all you do! ??
Kym