The issue of using board names as tags has already come up in meta, but I was wondering about chip numbers? E.g. the ATmega328 at the heart of the Uno.
There is technically a definite distinction between questions about the chip itself, and questions about the board it's mounted on. This is particularly significant when dealing with clones/compatibles, or homemade boards, where the wiring and other factors can vary substantially. There is therefore potentially an argument for tagging by chip number where possible, so that relevant questions can be found more easily.
However, it seems unrealistic to expect inexperienced users to know the chip numbers. Most people are only likely to recognise terms like "Uno" and "Leonardo" etc., so it seems inevitable that we'll end up mostly going by board names.
Is there a happy medium here? Would tag synonyms be appropriate (e.g. making "Uno" a synonym for "ATmega328"), or would that just make it more confusing?