Here is a reply from Viglink:
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For making sure VigLink isn’t present on a specific page/post, you can do the following:
– For VigLink Convert, use the rel=”norewrite” parameter:
When a link’s rel attribute includes “norewrite”, that link will not be affected in any way by VigLink. Clicks will not be counted, and the link will not be affiliated. Example: VigLink ignores this link
– For VigLink Insert, use the class=”nolinks” parameter:
If you have Insert enabled but want to prevent links from being inserted in a certain part of the page or in a post, you can add the class “nolinks” to any HTML tag that wraps that part of the page. Example: <div class=”nolinks”>VigLink will never insert any links here.</div>
For bbpress, try inserting VigLink in footer.php before the closing [/body] tag.
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How to actually do this? I have no idea…