It took me a while but I let the ombud know that, imho, CBC stories shouldn't link to ANY commercial social media networks, and that, while this may have been acceptable in the early days of social media in order to promote the use of a new medium (if not the companies behind it) these particular companies have shown themselves to be poor stewards of their users data as well as having little concern for the accuracy of the 'news' that appears on their platform. Further, a public broadcaster should not endorse particular commercial brands when there are public, non-commercial alternatives .

So thanks for the link and the prompting!