I found the article kinda peculiar -- went into really deep good detail in some areas but ...a few things really leapt out as bad information ...
a cheap crappy behringer dynamic mic .... monitors don't matter ? .... sure for the type of music here crappy mics are great and I rarely use condensors for vox ... but that behringer is so limited esp. when a sm58 can be found pretty cheap -- and will last.
Using hifi speakers for monitoring simply just does not work, it's next to impossible to get a mix that will sound ok on a variety of other systems. the author states she has headphones so maybe they're studio headphones and give the flat response she needs.
That behringer powered mixer as a desk ? A much higher quality non-powered mixer for the same price could be had - maybe she uses the mixer for running a band PA -- but in that case having powered speakers for your band PA and a better mixer would suit the dual purpose better.
Then it's odd that she states you need a computer with multiple core CPU and a Raid array for multitrack recording, that makes no sense -a stupendous amount of albums recorded in the digital era have been recorded on less.
finally -- what's with the no smoking rant? it's my fucking studio and I can fucking smoke if I want to. (I'm not a smoker , just found it a bit offensive when discussing a DIY home setup)
re. audacity, yeah good for podcast and quick and nasty banging something down but for multitrack recording in windows - Reaper ftw, and in Linux - Ardour.