It’s not confirmed, but we have to assume that it is possible.
Moreover, you can ask questions online anonymously on any topic and receive answers from the experienced community. Serious writers will undoubtedly be frustrated by the lack of features, but for notes and short blog entries, Paragraphs proves to be a worthy client.
However, there’s another, potentially more dangerous, scenario that a lot of people overlook.
Unfortunately, many are paying a very steep price for that. On one hand, Microsoft is pretty clear that instant messaging traffic (text) is sent to its servers as well as the recipient.
It could be end-to-end encryption, but there are indications that, particularly when routed through the Skype servers, the conversation could be visible or audible in unencrypted form.