This depends upon the context of the question. Our [**FAQ**][1] clearly states "*Server Fault is for system administrators and desktop support professionals, people who manage or maintain computers in a professional capacity.*".

If the question meets those criteria then it has a home on SF.

Having had a look at questions tagged [tag:rsync] on SO please remember the mantra 'Don't migrate crap'.

Regarding the question about quality standards - The [algorithm isn't published][2]. 


  [1]: http://serverfault.com/faq#questions
  [2]: https://meta.stackexchange.com/questions/92074/what-can-i-do-when-getting-it-does-not-meet-our-quality-standards