The users of the term are self anointed police, and judges desirous of being executioners. Firstly, one needs know the audience aimed for. They are the true-believers, or really those acceptable to a clique of true-believers.
The 'INO' part is acronymic for "in name only". This clique wants to purge members of the group they find insufficiently fervent, and extreme. They represent themselves as 'conservatives', they are equivalent to fascists.
Now, who in the United States are so extreme to think such policing and purging necessary? What other 'R' group could such fanatics be a part of? Answer: Republicans. This is why they run primary insurgents against their successful incumbents. This is why they have no embarrassment with such outhouse rat crazies as Michelle Bachmann, Steve King, Rick Santorum, Allen West, Joe Walsh et. alia.
Now, i see 'C' is for Catholic. Now, any pharisaic Catholic DOES NOT have either the power, or the authority to ex-communicate, not even to ostracize others. Though these people want a stalinistic purge, it only exists in their own demented minds. In politics they can vote out some member, and replace him with a crazier one; they can't do this in the faith. They have not accepted the lessons of their own catechism: "once Catholic, always Catholic". They do not see, that, the faith is broader than they. It is interesting, that the only parts of Catholicism they approve of coincides with their politics, and often with their [or their masters'] economic desires, which contradicts Christianity. When they encounter Catholicism they don't approve (yet they know is valid) of, they brush it away as debatable, or trivial.
On the first day of this year, the pope, Benedict XVI had this to say, and in so doing expands on one of Jesus's Beatitudes of the Sermon on the Mount, which are the core of Christian teaching:
Although the world is sadly marked by “hotbeds of tension and conflict caused by growing instances of inequality between rich and poor, by the prevalence of a selfish and individualistic mindset which also finds expression in an unregulated financial capitalism,” as well as by various forms of terrorism and crime, I am convinced that the many different efforts at peacemaking which abound in our world testify to mankind’s innate vocation to peace.Capitalism is linked to terrorism and crime.