<h2>Each method gets its own tag</h2>
<p>... but on reasonable generality level, eg. [cross-validation] not [elevenfold-cross-validation-with-random-resampling-for-butter-taste-data].<br />
Reasonably general can be judged in such a way: we wait a month and see if any other question used the tag. Exception: if a [submethod] tags 100% of [method], we delete it.</p>
