The article from CNN seems to echo the view in point 1:

"Although leaders like Pompeo have described TikTok as a clear and present danger, many in the cybersecurity community say the reality is more complex. While TikTok could become a clear threat to US security under certain scenarios, they say, the danger is currently largely hypothetical.."

https://www.cnn.com/2020/07/09/tech/tiktok-security-threat/i...

The fact is also that Apple in particular has an enormous interest in avoiding the CCP being angry with them and Google has also been trying to re-enter China recently.

His response was a link to support a contentious claim which is that the security threat is overstated. That's a reasonable position.

You're not allowed to actually say that here.

https://news.ycombinator.com/newsguidelines.html

> Please don't post insinuations about astroturfing, shilling, brigading, foreign agents and the like. It degrades discussion and is usually mistaken. If you're worried about abuse, email [email protected] and we'll look at the data.

I don't know if other sites work the same way that HN does. I just know that I've spent countless hours studying the HN data on this, and the conclusions are extremely clear: the vast majority of comments like what you're posting here, insinuating astroturfing or brigading etc., are entirely made up based on what people imagine they see. Therefore we ask users not to post them unless they have some evidence to point to (see https://news.ycombinator.com/newsguidelines.html). Running into views that you disagree with does not count as evidence. This is a widespread community with millions of members from all sorts of places and backgrounds. It's inevitable that opposing views show up here, including about China. That's entirely natural.

If you need more explanation, there's tons at these links:

https://hn.algolia.com/?sort=byDate&dateRange=all&type=comme...

https://hn.algolia.com/?dateRange=all&page=0&prefix=true&que...

China has an extensive track record of influence operations and election meddling in other countries and has used social media trolls to target political protests in Hong Kong. Last August, Twitter disclosed a significant Chinese “state-backed information operation” aimed at the protests, dismantling a network of 200,000 accounts that aimed to sow political discord. Facebook also detected similar activity and took action.

China also showed its hand during Taiwan’s 2018 election, employing its “50-cent army” of online trolls to sow propaganda and weaken the ruling party. Having tasted success in Taiwan, China conducted another disinformation campaign in the run-up to this month’s presidential election, trying unsuccessfully to undermine Taiwan’s incumbent president, Tsai Ing-wen, who China abhors. China also reportedly hacked into Australia’s parliament and political parties just three months before elections there last year.

While there are no known cases yet of TikTok spreading propaganda to meddle in foreign elections, the national security risks are inherent. As long as the app is controlled by a Chinese company, its data and capabilities will always be within reach of China’s government.

After all, TikTok and ByteDance would only be complying with Chinese law. China’s 2017 National Intelligence Law requires that “Any organization or citizen shall support, assist and cooperate with the state intelligence work in accordance with the law.” Unlike American companies who receive requests from the U.S. government, ByteDance simply has no recourse when faced with orders from China’s authoritarian government.

It's odd how so few people seem to see (and by the dimness of your comment, even downvote it) the potential for TikTok to be used for propaganda purposes.