sometimes I ask a question which don't receive much attention (this may include because the question is quite obscure, and in 1 recent case, probably because I posted it in the morning in the UK when not much people are online to see it)
Someone spent an awful long time to solve it. (it was a very hard first year analysis question). I feel merely accepting the answer and giving it a +1, (in term of rep points) in no way justify how much work he has put in (and how clever the argument was) while some 'trivial' 1 minute answers to 'trivial questions' receives 20+ reps.
so i came up with this idea, i went around his posts, and upvoted 5 of his accepted/good answers, should I be doing that?