Yes, it is a meta tag. We should remove it.
mythbusting does not describe the content of the question, but it describes the asker's previous knowledge or thoughts on the question. It describes the author's motivation for asking the question (I think X, is that right?).
From the post on meta tags:
The reason meta-tags are a problem is that they do not describe the content of the question. They describe some other aspect of the question, like the author’s skill level, or the author’s motivation for asking it, or generally what “kind” of question it is (poll, how-to, etc.).
Meta-tags are actually a subset of a larger problem that I usually call dependent tags. These are tags that don’t say anything by themselves – you can’t tell what the question is about unless they’re paired with some other tag (or several of them). These tags are a problem because people don’t realize this and will often use that as the question’s only tag.
In addition to my comments on Zaralynda's "Yes" answer, I shall play Devil's Advocate for a moment and liken mythbusting to one which we don't currently have and which I think would be subject to similar arguments.
This particular example describes a characteristic of the animal in question, certainly, but more importantly it describes an aspect of the question which is important to the person asking while in many cases being actually irrelevant to the question. It would get used simply because people like to categorise things, but it would attach to questions about any sort of animal in which albinism can occur.
- Is that useful to the person asking? No.
- Is it useful to a visitor looking for related questions? No.
- Is it useful to the site as a whole? No.
- Is it useful on its own in categorising a question? No.
Well, a point in the linked blog post is about whether or not the tag could be used by itself for the question in a meaningful way. It seems to me, with respect to the questions we have there, that it's not too bad in and of itself. Basically, I'm seeing that it:
- Describes the purpose of asking the question
- Implies that the question is about a "fact" that could be disputed
- Invites the responder to provide real evidence to dispute the "fact" presented or support it and back it up
I think I kind of like it. :)
It also has the advantage of collecting together questions that surround the old wive's tales of animal caring and that can be an interesting trip for anyone looking at "interesting" questions that are not directly related to personal problem solving.