By default, all survey questions are 'optional', they are not 'forced' on the user. If there are any questions that are particularly important, that you would like to be 'required', please list them here. After the user submits his survey response, the 'thankyou' screen can carry an optional link back to your page. Your survey may include a 'summary' page where, with the user's approval, their answers are posted. Summary pages that get 'too large' are trimmed to about 30k.
Most topics already have appropriate newsgroups and mailing lists for relevant discussion.
Sorry, NetForum is temporarily disabled. You may request it here but that feature will not be functional until the software is reenabled. If you are aware of a date that your survey should be closed, please state it here. The default is 'open ended'. Thank you for your interest.