It's not clear to me that the diet tag provides any usefulness in filtering questions right now. Currently its use seems quite synonomous with food, another tag with concerns.
I think the diet tag has potential for grouping questions that ask about more specific dietary patterns that exist within the umbrella of vegan and vegetarian diets. For example we have fruitarians, raw vegans, locavores, followers of whole food plant-based, and low-carb high-fat vegans.
However, most questions currently carrying the diet tag are not about dietary patterns that provide additional guidance beyond the basic tenets of veganism or vegetarianism.
I propose three possible strategies going forward, and welcome discussion of other strategies.
1. Burninate the diet tag
The diet tag is currently used on 52 questions but offers very little filtering value on those questions. There are many questions where the addition of this tag doesn't add any qualifying information that go beyond the premise of the site and there are many related/similar questions not carrying the tag. Because of this, it might make sense to eliminate the tag entirely and instead encourage the use of tags that refer to specific diet patterns, for example:
2. Give the diet tag a specific meaning
If we don't like the idea of having tags for each diet pattern as described in #1 then it seems like the diet tag would be great for all questions about those specific dietary patterns. But in order for the tag to have meaning, it would need to be stripped from a couple dozen unrelated questions, for example:
- How can I communicate ideas about vegetarianism or veganism to others without appearing like I am imposing it on them?
- Is it true that vegetarians who eat meat become ill?
- Are all types of lentils equally good sources of protein?
If we were to remove the diet tag from these questions, we would likely want to add more relevant tags in their place.
3. Synonomize diet with food
This option was suggested by @NogShine in chat. This would best reflect the current usage, since most questions carrying the diet tag are about food. I could only find a couple counter-examples:
- How can I communicate ideas about vegetarianism or veganism to others without appearing like I am imposing it on them?
- Is usage of corals vegetarian and/or vegan?
- Does veganism help with yoga practice? How?
I feel like selecting this option would depend on first making a decision on Is the [food] tag too greedy, or should it eat even more?.