By default Discourse adds rel="nofollow" to links posted by users.
There’s no rel="nofollow" on the user’s profile in the Top Links section.
AI-generated summary
The discussion revolves around the absence of rel="nofollow" in links on a user’s profile, specifically in the “Top Links” section. gerhard points out this discrepancy and also notes that the “Popular Links” section of a topic is missing this attribute as well. zogstrip confirms that the issue has been fixed, but notes that adding rel="nofollow" to the “Popular Links” section of topics is more complicated due to the need to test the trust level of each user who submitted a link. gerhard suggests that adding rel="nofollow" to every popular link could be a simpler solution.
2 Likes
It’s now fixed 
https://github.com/discourse/discourse/commit/c117a48e93768a51b485264b6579380b90b2b3c6
The “Popular Links” section of a topic is harder since we need to test the trust level of the user that submitted each links… Not sure it’s worth the work.
4 Likes
The easy way out would be to add it to every popular link. The link already exists somewhere within the topic and if the user has the right trust level, then it doesn’t have a nofollow attribute.
4 Likes