There are news channels that are only on social networks.
And you're better off ignoring them. Corporate news channels are nothing but advertising and propaganda.
As far as I know, you can’t do without scraping on the server if you want to receive news from social networks.
Not to be pedantic, but web scraping and port scanning aren't the same. If you had mentioned scraping before I'd have been content to say that sites that make you scrape instead of providing RSS feeds are run by assholes.