I just activated Office 2013 via KMS using Microsoft Toolkit. Since the KMS server I used isn't exactly legit, it is safe for me to sign into Office using my Windows Live account (to save to Skydrive, etc.), or will alarm bells start ringing at Microsoft?
If you are truly worried you can always create a new Live account. There are no alarms going off at MS for KMS activated Office installations since the alarm would never stop going off. KMS is totally legit, its one of MS's own services that many companies use every day. How you use the KMS service is what is questionable.
I have activated Office in this way or another and when I started word I was already signed in. (I use a MS account for me computer.)
I've been signed into my main live account with KMS activated Office 2013 for months and months, its fine
Was just worried about my SkyDrive files that are constantly updating and syncing among all my laptops. What a relief to hear the confirmation! Thanks everyone.