As described in the video, this will, without dodgy software farm any given sylph in the Sylph Atoll for free. All you need is a tiny mouse clicker software which you download from a legit site (download.com). Feel free to leave a comment on how it worked for you when you've tried it out!
It is probably undetectable, but use it at own risk. I've used it for weeks and over 24 hrs straight many many times, and nothing has happened to me. Got the sylphs I wanted, so I decided to share it.
Mouse Clicker used in the video download:
Enjoy!