Clarify payments eligibility

src/pages/about.astro

@@ -103,12 +103,50 @@ const members = filterInactiveMembers(await getMembers());
       <section>
         <h2>What payments are eligible?</h2>
 
-        <p
-          >Companies directly pay maintainers of Open Source projects they depend on, with no strings attached. Paying
-          developers to do specific work does not count towards the Pledge. Feel free to participate in <a
-          href="https://github.com/opensourcepledge/osspledge.com/issues/112">our ongoing discussion</a> on what counts
-          and what doesn't.</p
-        >
+        <p>The primary intent with the Pledge is <b>no-strings-attached payments
+        to Open Source maintainers</b>. Start there.</p>
+
+        <ol>
+
+          <li>Open Source projects that your company controls are out of scope.
+            If you own the trademark, it doesn't count.</li>
+
+          <li>Open Source projects that exclusively benefit your company's
+            own ecosystem are out of scope.</li>
+
+          <li>Directly employing maintainers is laudable, yet outside the core
+            scope of the Pledge, because of the complexity and subtle conflicts
+            of interest that come along with that.</li>
+
+          <li>It's okay if you get non-exclusive logo placement or other
+            acknowledgement for your payments, or an hour or two of consulting
+            time along with a large sponsorship, but anything beyond such minimal
+            benefits puts the payment out of scope.</li>
+
+          <li>Payments to <a
+              href="https://fossfoundation.info/">foundations</a> are generally
+            in scope, even though most foundations today are not set up to pay
+            maintainers (they focus more on conferences, trademarks, etc.). We
+            hope that the Pledge will enable foundations to shift towards
+            paying maintainers in the future.</li>
+
+          <li>It's great if your company also actively participates in the
+            projects you fund, via code contributions, membership on an
+            advisory council or board, and the like.</li>
+
+          <li>Platforms such as <a href="https://thanks.dev/home">thanks.dev</a>,
+            <a href="https://opencollective.com/">Open Collective</a>, and
+            <a href="https://github.com/sponsors">GitHub Sponsors</a> are a
+            common way to pay maintainers, though some can also
+            be used to make payments that are out-of-scope for the Pledge. Only
+            payments that fit our criteria are in scope, regardless of payment
+            platform.</li>
+
+        </ol>
+
+        <p>When in doubt, use your best judgement and be transparent in your
+        annual report.</p>
+
       </section>
 
       <section>