I used to run OpenSuse, when I installed it, I basically just went for the express install, which formatted my drive with xfs. I had dropbox setup, and one day a popup told me it was no longer supported. They decided my file system was not secure enough to store my own files. Their solution was I should repartition my drive using ext4. Then reinstall. That sounded like a bunch of work I didn't want to do, so I googled for competitors. Found one, and was able to import all my files in a few minutes. Haven't had a reason to switch back since.

Today I'm an Arch user, and my filesystem is EXT4... but I haven't found a reason to switch back. The new service is working just fine.