<p>It is natural to apply such a weighting and I like the idea, but consider the challenge that the reputation a user has earned is bound to the tags of the answered questions. This can be included into the score model by setting the weight of a user vote to 0 if no reputation has been earned in this tag and normalization per tag otherwise, but what shall be done in case of rare tags ?</p>

<p>What shall be done if a question has multiple tags and the user has not earned (enough) reputation in all of these ?</p>

<p>In summary, such a change, although appealing and certainly more correct, might introduce more problems than it does solve (occam's razor).</p>

<p>Another solution could be to drive more responsible users to this site. If every question get the attention it deserves it is not necessary anymore to apply weighting to improve the meaning of answers with a small number of votes.</p>
