I've noticed that some sites, including TechCrunch, hyperlink the H1/heading of each of their articles so that it hyperlinks to itself. Other blog platforms like Blogspot do this as well, with a link at the bottom of the article that says "permalink" - all it is, is a link to the page you're already viewing. I was just wondering if there is any purpose to doing this? I wouldn't imagine that big sites like TechCrunch would be doing it for no reason, or risking search engine penalties.
Permal links never change, so feeding the bot these links index them Then when the article moves of the first page to page 2, the perma links is still there. Then the bot does some thiniking, for example The bot then realizes that the permal link doesnt change (no point indexing it every day) but the front page does...
its benefit is that Link Anchor Text is valued more than normal text so to increase relevance to specific keywords they put it as link to the same page just like bold and h1 are more effective than normal text in SEO