The person suggesting FreeBSD is a FreeBSD developer (Colin Percival - actually according to Wikipedia FreeBSD engineering lead), would be weird for him to suggest openbsd.
> we're in a similar space -- http://www.getdropbox.com (and part of the yc summer 07 program) basically, sync and backup done right (but for windows and os x). i had the same frustrations as you with existing solutions.
> let me know if it's something you're interested in, or if you want to chat about it sometime.
>drew (at getdropbox.com)
Okay. But the question isn't about him, the question is about the actual merits. And he's a good person to ask for a compelling argument about the merits.
If you ask Bill Gates why you should use MS-DOS in particular, not DR DOS, the answer is not "it would be weird for Bill Gates to suggest DR DOS".