After updating the Laracst forum page as I see thread and replies is coming by API call after the first load of the web page so I think it is very bad for websites SEO cause crawler will not detect any text on the threads page cause replies are loading on client side, not on the server side and it will not be ranked on google so as most of the traffic is from search engine I guess the website will lose a lot of traffic.
From my research(I'm looking websites traffic on http://similarweb.com/website/laracasts.com) website already lost 500k visits compared to previous month and I guess the issue is this indexing.
For the current situation, old threads are already indexed by google but new ones will not be and also time to time crawlers will prefetch old threads pages too and they won't index any replies and text.
@JeffreyWay please change the logic of API calls on threads page.
Interesting conclusion, but according to this blog post, search engines like Google will in fact execute Javascript and make AJAX calls to retrieve dynamically loaded content.
That said, I don't think dynamically loaded content is the cause of traffic drop...