Suggestion: Show all spaces as entered, even at the end of a row.
When you enter a text in Writer the spaces at the end of the line is hidden. Then I often press the spacebar twice to ensure space is recognized. Then when I add a new word before the spaces and there is a new word by the line break, the spaces are shown. Then I need to delete the spaces. Especially annoying is this bug when a full paragraph is moved in this way. (I always use "Nonprinting Characters"(Ctrl+F10) )
This is fixed with 3.5.0 - you can try with the beta2 http://www.libreoffice.org/download/pre-releases/
*** This bug has been marked as a duplicate of bug 33167 ***