I'm not sure the purpose of this post is the active link with name could be viewed as link spamming. The reason I say this is I don't get an alert when visiting a site, this tactic is often used by spammers to promote a site in a post.
If you are getting an Alert the best option is to attach and image (of the Avast Alert with Details option selected) to your post in the forum (not embed it as you have before).
Attaching Images to your post - When you Click the Reply button it opens a text window for you to post your comment (reply or post).
Click the Preview button, that shows what you have input and expands it to include 'Attachments and other options'. Click that it further expands, here you can attach images, etc. at the bottom of your post.
See my attached image, click to expand.
Reporting a Possible False Positive File or Website -
https://www.avast.com/false-positive-file-form.php.