The following quote is taken from an article explaining key differences between open source and commercial ERP software:
Open Source ERP does not require much training. The source code is more than a training manual. The results are also bound to be effective because the user gets to learn through the process of self teaching. The company need not spend much on training and makes a minimal utilization of the resources.
Users will get trained by reading the source code??? Yes, I know this can’t be taken seriously, but it’s just so ridiculous I had to share it. The link to project failure is so obvious that no additional comment is needed.