I'm willing to bet that they are.
Do you think there is a huge tendency towards Oracle, Infor or MS Dynamics rather than SAP across hacker news, or are you just assuming that people who go on hacker news aren't in the 'circle of companies' which need an ERP?
Most people on HN probably go work for companies that pay them the best compensation or offer them a good position, not based on what ERP they chose.