1) You should occasionally sync your Kobo even if you don't use the Desktop app. You might miss a big update, or one of the many smaller ones.
2) Mobileread is not connected to
Koboereader.com . Though some members are employees of Kobo, the kobo support forum is
here.
You'll find pretty much anything you need to know about Kobo's or any other readers.
Welcome to MobileRead.