Each blogger has a contact page. Unfortunately, in our attempt to not use services from big tech (like Google), the spam prevention options are limited. reCAPTCHA (probably the best anti-spam system for contact forms) is a Google product, so we have avoided using it.
If you are getting too much spam from non-members, you can edit your account and turn off the contact pages.
If you are getting spam from members, please contact me directly.