There are only 45 questions linked to the Anglicanism tag so I don't think there is much benefit to subdividing it, unless as Caleb says, there are examples where it would clearly help. I also think it would be rather confusing as the level of squabbling, or learned debate, amongst the primates is such that it is not always easy to follow who is in full communion with whom, and anyway it is somewhat fluid.
I do think the descriptor of the tag should be changed though. It currently says "Referring to the Church of England or those churches in other countries which are in full communion with it ...". I suggest it should be widened to include those who identify as Anglican but are not in full communion with the C of E (e.g. the ACNA); but also narrowed to exclude those who are in full communion with the C of E but are not Anglican.
The Church of England is in full communion with:
- Most other Anglican churches.
- Most other national Protestant churches in Europe. These include the Church of Norway, Church of Sweden, Church of Denmark, the Evangelical Lutheran Church of Finland, and others (but not the Church of Scotland).
- Some other Protestant churches such as the Lutheran Church in Great Britain and the Evangelical Lutheran Church in Lithuania.
- Some "Old Catholic" churches, most of which split from, or were excommunicated by, the Roman Catholic Church over the issue of Papal infallibility following Vatican I. These
exist in Germany, Austria, Switzerland, Holland, Poland, France and elsewhere.
- An Oriental church, the Mar Thoma Syrian Church, based principally in the Indian state of Kerala, and said to have been founded by St Thomas in the first century.
- The Philippine Independent Church which split from Rome in 1902 over the role of Spanish Jesuits in the independence conflict.
This list includes Evangelical Lutheran, Old Catholic, Oriental and Independent churches, none of which would consider themselves, or be seen by others, as Anglican.
I would suggest "Referring to the Church of England and those churches in other countries which identify themselves as Anglican", although this seems a bit circular. The Catholicism tag mentions "the Catholic Church" which is equally circular and arguably more contentious if taken to apply only to the Roman Catholic Church.