Ubuntu is still buggy for non-English speakers.

[Masoris]

It is true that Ubuntu is buggy enough for non-English speakers. I continuously found critical bug on launchpad on every Ubuntu release.

Here is some crazy bugs.

In Ubuntu 7.10:
1. https://bugs.launchpad.net/ubuntu/+source/scim/+bug/66104
In fresh install, if you use SCIM to input non-European language, you can type nothing on firefox, and some softwares. If you tried to type something the software freeze. (This bug fixed on March 2008 )

2. https://bugs.launchpad.net/ubuntu/+source/libcairo/+bug/173861
If you installed a Microsoft East Asian font, and you are use that font as default, after security upgrading, you can't boot on GNOME. This bug gave panic for many Korean and Chinese Ubuntu users. (This bug fixed two month later after bug reporting)

In Ubuntu 8.04
3. https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/196277
If you use auto login, you'll lost keyboard setting every reboot. Or you can't change keyboard layout. (This bug is still not fixed)

Because of these, I can't recommend Ubnutu to other people. :(

[Catharina]

So I am curious. What bug free OS are you advising now to people?

[Mr. Picklesworth]

I imagine programs like Firefox and OpenOffice cause issues with SCIM. Have you tried Epiphany for your web browsing? It may give better results. If not the one in Ubuntu's repositories, the Webkit version of Epiphany is floating around in some Launchpad PPAs like this one (https://edge.launchpad.net/~michelinux/+archive). It is not finished yet, but it could be worth knowing whether it works!

[init1]

So I am curious. What bug free OS are you advising now to people?
No OS is bug free, but Ubuntu has a LOT more bugs than Debian.

[FuturePilot]

According to the third bug you listed there with the keyboard settings issue, it appears it affects multiple distros, so I fail to see your argument that it's just Ubuntu that is buggy for non-English speakers.

[Neurotripsick]

I tried the spanish version of xubuntu a week or 2 ago (Im from Chile) and I must say that it was considerably more buggy than the regular english one. Lots of programs didnt work the way they were supposed to, and overall it felt slower and different. So today Im back to your everyday english speaking xubuntu.

[Dremora]

No OS is bug free, but Ubuntu has a LOT more bugs than Debian.

And Fedora is guaranteed to have more bugs than Ubuntu....

I would hope that after backporting bugfixes to a kernel thats outdated by 2 years, that Debian is pretty stable.