A simple solution would be to restrict your professional communications to an online "contact me" form, which in itself would require CAPTCHA or some sort of registration. That would require a culture shift within ProPublica--easier to achieve than policing all WordPress installs or all mailing lists.
A simple solution would be to restrict your professional communications to an online "contact me" form, which in itself would require CAPTCHA or some sort of registration. That would require a culture shift within ProPublica--easier to achieve than policing all WordPress installs or all mailing lists.