If this was Unix and Linux and somebody posted a question about a common command line utility but didn't specify what platform they were working on, the first comment would be "What platform" because the GNU tools used in Linux is different than the BSD tools used in OSX, Solaris, OpenBSD and others. The point of view of the OP is highly relevant to provide a good answer.
Likewise an OP may ask for a solution that applies to a different platform. An OpenBSD guy might come along as say they are confused about how to use
find on Ubuntu because the arguments are in a different order. Here, the requested POV is critical.
Lastly there are answers that are portable. These take the form of "This bit will go for any Unix, but for this bit you need X if on Linux and Y if on BSD and Z if in Solaris". These are also quite common. Here, stating the scope of each bit of the answer is critical.
This site is no different! Christianity is far more diverse and has far more distinct traditions than even the behemoth of fragmentation in the computer world. Without monikers for some of these, we will forever be chasing our tails.
As a Protestant, if somebody answers a question with "Catholics believe x and put it into practice using y" I can celebrate that, agree that it is a good answer and upvote it if it clear even if I don't believe that is the 'true path' or whatever you want to call it. I can respect their tradition and ask questions about them. I have asked questions specifically about Catholicism here and will continue to do so because there are several knowledgeable folks in the field.
TL;DR: Trying to deny folks the ability to use these monikers to identify the scope of their questions an answers is futile in the same way that StackOverflow would be useless without tags to separate C++ from PHP from RUBY from Fortran.