The use of a form as the only method of feedback can limiting to those with visual impairments, depending upon the text browser in use. The limitations of the screen reader also plays a role in the inaccessibility of forms.
Some screen readers skip over fields which are blank.
The blind user also cannot readily tell how much space has been allotted for each answer. As forms become less mouse-dependent, they are becoming more accessible. Add an email option, preferably before the top of the form, as an alternative method of contact. Other alternate methods of contact, such as phone numbers or addresses, should also be considered.