There is an RSS, like any SMF forum, years ago people used Bitcointalk to auto-post content in mass on Twitter with their bots.

You should go to the home page, click-right on it, and then "view the source code of the page".
Then use your browser to search for "RSS" or using CTRL et F.

You will more easily find the link

Edit:
https://bitcointalk.org/index.php?type=rss;action=.xml


:/

As far as I know, Bitcointalk doesn't have an RSS link. I think TryNinja's API is what you're looking for. That's probably easier than scraping Recent posts by yourself.

I can also get you a file "latesttopic.txt" (similar to latestpost.txt) if it helps.