And I have made sure not to do that, as pointed out above. I must once again point out, though, that it is not merely their "poor understanding of the English language," when even The American Heritage Dictionary and the Wikipedia Meat article separates fish from meat. But, anyway, a pescetarian is a type of vegetarian, as valid sources state. The lead does not directly call pescetarians vegetarians (due to dispute), but only presents that, in some authoritive dictionaries, vegetarianism may include the consumption of fish. As stated before, the lead then makes sure to tie that type of diet to pescetarianism, and note how pescetarianism being thought of as vegetarianism is disputed. Merriam-Webster even now defines pescetarianism  as "vegetarians who eat fish" (as I've already mentioned)...so, clearly, there is validity in mentioning pescetarianism as being an aspect of vegetarianism (as much as veganism is), especially as long we note the dispute between the two terms, and especially when pescetarianism is present within the body of this article, below the lead.