While I have no problem referring to and even linking to aricles in other publications, reprinting them wholesale (as this poster did) opens us up to all sorts of legal issues, not least if the original article was in some way defamatory.
Also, we have covered most strata issues in this forum and its related newspaper columns and a simple search would have found this article http://www.flatchat.com.au/broadband-providers-bashing-on-doors/ and this one http://www.flatchat.com.au/nbn-coming-to-your-block-like-it-or-not/ which, together with subsequent posts answer most of the issues raised without having to trawl through local newspapers for possibly confusing information.
And to answer the basic question, the advice given is that while the law doesn’t allow you to stop internet providers from checking your common property areas, you do not have to allow them to install their equipment on their terms and certainly not at the exclusion of other ISPs.
There’s a search window at the top of the page – use it and you will be surprised what you will find.