The one question with masechet-taharot was Why aren't Zeraim or Toharos included in the Bavli as Mishnayos?Why aren't Zeraim or Toharos included in the Bavli as Mishnayos?, and I've retagged it to have seder-taharot since, as you note, it's more appropriate to the question. (You coulda done it yourself.)
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