> If it becomes common, people just accept the minor incompatibility and move on
If LibreOffice becomes more popular people will receive an odt document, MS Office will format it funny and it will be their fault for using weird software.
I think the situation parent writes about is more likely (and more informative). Namely that there are places with two major-enough platforms such that everyone has to accommodate both (e.g. browsers).
If LibreOffice becomes more popular people will receive an odt document, MS Office will format it funny and it will be their fault for using weird software.