<p>Low rep users can "favorite" questions in order to keep track of questions that they found useful. Favorite questions are listed separately from votes in the profile history and do not require reputation. </p>

<p>Answers to a specific question cannot be marked as favorite, so revisiting an old question may take a minimal bit of effort to find the desired answer. </p>

<p>Because the "favorite" feature covers the desired use case (allow low rep users to keep track of useful questions and information), though not the exact technical request (track votes for low rep users), I'd guess the probability of implementing this feature request to be pretty low. </p>
