[kijin]

Well, nobody's expecting 100% perfection anyway. Even if they just squashed a dozen well-known bugs such as revision tracking, that would be a major accomplishment.

[davidgerard]

How to switch on revision tracking in LO: http://ask.libreoffice.org/en/question/3961/track-changes/

Now if you're saying it's buggy as hell, that's a different matter :-)