Ah, I think I see, and I may have initially misunderstood. I had understood (in the chat) that you wanted a tag for each make/model, but, in fact, you would rather link each make/model back to a printer type, so
P3Steel -> Prusa
Kossel -> Delta
Is that right?
If so, then I am not so sure. I would want to keep some of the p3steel questions to be specific to P3Steel and not just general prusa issues.
Likewise, some kossel issues are specific to the Kossel and not to all delta printers.
In some cases I would agree that your reasoning is correct, but not in all cases. In the cases where you are right (such as the example that you cite), then the question would just need retagging correctly, but not require linking all of a particular printer's make/model related questions (via the synonym-ising (?) of the tag) back to that particular printer's type.
Does that make sense? Have I understood correctly?
As an example, if you have a generic question about a ANet A2 printer, that actually concerns all cartesian printers, but especially Prusa, you would have to manually tag that question aneta2 and prusa and cartesian, so that it gets grouped in such a way, where Cartesian, Prusa and AnetA2 are subsets of the previous (super)set. I don't think you can internally link the tags, if you see what I mean, that mechanism doesn't exist.
Likewise, if you have a generic question about a ANet A2 printer, that actually concerns all prusa printers (but not necessarily all cartesian printers), you would have to manually tag that question aneta2 and prusa and maybe cartesian.