The impression I get is that this tool has a forensic bent to it. You ask for the code for a paper and Joe grad student with no programming knowledge emails you a zipped folder of R scripts. He just finished his dissertation, is starting a new job somewhere on the west coast, and no longer has access to the computer in his old advisor's lab where he did the work. The implementation may (or may not be) be lousy, but the use case sounds plenty valid.