I appreciate that there is the option to up-vote answers, but I would also like to be able to choose more than one answer as the "this helped me most". I realize that the idea of "most" would not be honoured in the strict sense that governs competition, but in this context... maybe we could move beyond it ?
if the concern is that it should be done sparingly, perhaps there can be a "cost" to the "asker".
In some situations where I ask a group of people to vote for something I do not give them one vote each, but rather 5 votes each. I tell them they can allot the votes as a block, or in pieces. This results in a clearer picture when I add up the votes. It also leads to people having a higher sense of ownership in the final outcome.
thank you for considering.