Error: `invalid content detected` - anyone else seeing this on the Product Hunt Comment Section?

I've started seeing this error `invalid content detected` in the comment section whenever someone asks me share to my product link with them. I once posted my PH URL link in one comment and then I am unable to post the link in the comment. Is anyone else experiencing this? BTW this is our teaser page link- https://www.producthunt.com/products/openstrokeicons