Yes.
Pls. check this thread : [agnostic.com]

Non-Commercial Use by Members/Viewers :

The Agnostic site is for the personal use of individual members and viewers only and may not be used in connection with any commercial endeavors. Organizations, companies, and/or businesses may not become members of Agnostic and should not use the Agnostic service or site for any purpose. Illegal and/or unauthorized uses of the site, including unauthorized framing of or linking to the site or the sending of unsolicited bulk commercial e-mail will be investigated, and appropriate legal action will be taken, including without limitation, civil, criminal, and injunctive redress. In order to prevent the sending of unsolicited email to its members, Agnostic may take reasonable steps, including the limiting of the numbers of emails sent by a member.

I reported it to Admin, whether we have an active admin or not remains to be seen.

No idea. It seems not to happen, and those that try it seem to disappear quickly. Though I have often thought, that it would do no harm for the site to carry a few paid adds.