Best way to earn rep when unable to answer quickly
I have been getting a lot of help from reading the stack overflow answers to android/java questions. My issue is that the problems that I have encountered have all been asked and answered. So, I don't ask questions and I don't provide answers so that my reputation doesn't change.
I wouldn't care, except that I am getting such good help from some of the answers, that I would really like to be able to vote up the answers.
How do I get myself to reputation 15 in my situation so that I can participate at least enough to say thank you?
Or am I missing something?