In answer to your questions:
a) You can create custom ad listing forms which leave out any price field, however the physical price tag image still appears on the template by default. It would require some customization on your part if you wanted to remove that completely, but it technically can be done as our themes are not encrypted.
b) Yes there is poster information visible in the sidebar of the single ad listing page which the person viewing can see. Just select the "Poster" tab as shown on the right hand sidebar of the demo page
here and you can click the username for more of a profile page. Some of what appears there depends on what the poster has included in their
profile page, however email is not included as that is what the contact form is for. Thanks.
