Did you mean subscribing to their newsletter? I don't think it would cause any copyright issues unless you co-pas and republish the news without embed the original source.
So I can get the news, but if I publish it after commenting with my own writing style, it's okay. This is how I understood, is it true?
Cite the part that you want to comment and don't forget to embed the original source as well. For example: based report on
Cointelegraph "bla bla bla" then put your opinion here or you can put your opinion in front of the paragraph