can people fill out the form to populate a spreadsheet? i don't actually want individual emails. thanks.

Yes, you can integrate your form with a Google Docs spreadsheet and submissions will automatically be entered into the sheet:

https://www.jotform.com/help/228-How-to-Integrate-Form-with-Google-Spreadsheet

Delete you email notification if you no longer want to receive emails:

https://www.jotform.com/help/25-Setting-Up-Email-Notifications