Err... making Libertarianism an exception in this fashion seems like rather blatant Special pleading.   
Focus should be all the forms of "libertarianism" that sufficient WP:RS identify as libertarianism (even the ones I don't like). Though short commentary on why some forms don't think other forms are really libertarianism is permissible. Per NPOV: All Wikipedia  articles and other encyclopedic content must be written from a neutral point of view, representing fairly, proportionately, and as far as possible without bias, all significant views that have been published by reliable sources. This is non-negotiable and expected of all articles and all editors. and per the RfC on this page where a good majority of editors agreed.   

And what the heck is that supposed to mean? I'm not violating N:POV by saying that Left-libertarianism is not a predominant or significant ideology. You are also ignoring WP:DUE, which is just as important as N:POV. Unless you can provide reliable sources proving the predominance of LL and Anarcho-capitalism inside the Libertarian movement, then it should not focus on it as much as the standard form of Libertarianism, know here in an act of incredible redundancy as 'Right-libertarianism'. It is as if you don't even read what you are posting! Here, look at it again:
All Wikipedia  articles and other encyclopedic content must be written from a neutral point of view, representing fairly, proportionately, and as far as possible without bias, all significant views that have been published by reliable sources. This is non-negotiable and expected of all articles and all editors.
Hm... According to this, we should proportionately cover views covered by reliable sources. Seems like what us right-wing crackpots are arguing, and what you left-wingers vehemently oppose.  Nidhiki