<p>I must disclose that I don't know anything about surveys, but in other areas "weighted sampling" is quite a common and well established term, to the point that there are more concurrent meanings in need for disambiguation. Think e.g. about sampling with a measure change (of which importance sampling can be seen as a special case). Or WLS in a simulation setting. Also "Weighted Monte Carlo" has atleast two different well defined meanings in quantitative finance, both of which are sometimes confusingly traded for "weighted sampling". Maybe by "unequal probability sampling" you meant just a measure change, but for many people (atleast all of us into simulation) such term rings no bell at all and is worse than obscure w.r.t. referencing (despite its obvious interpretation). </p>

<p>I can understand your concern though, and we should discuss it more extensively, what I suggest is just not to generalize to the whole forum a fix fit for a few areas only.</p>

<p>I cannot offer a solution right away, but certainly removing the tag altogether would cause additional problems, worse than the single relatively specific/limited issue solved. Those "misbehaving" posters should be advised to stay away from improper tagging instead, and on the other hand a disambiguation guideline would also help a lot.</p>

<p>For the proper uses I am even thinking about subtagging ("xxx weighted sampling" vs "yyy weighted sampling") where reasonable disambiguation synonyms cannot be found, so far from killing the term.</p>
