When I see a question that I am able to answer, I always do so and try hard to explain whatever reasoning may be behind how to do whatever the person wants to do. Most questions I answer are technical in nature, so I always translate technobabble to English (sorry, but I'm not competent in other languages, although I will sometimes be able to make a stab at Spanish when needed).
I have never tried to follow up and see if the person took my advice, but it seems to me that most times they do express appreciation for my help. Another way of knowing that my G2G contributions are appreciated is the upvotes, best answer stars, and also responses from other new members about the answer helping them.
Of course, none of this matters to me as much as the feeling that I'm paying it forward for all the help I've received here (and have taken and appreciate so much) from members who know so much more than I do about genealogy and especially about my Achille's heel of being so geographically illiterate (special shout-out to the always amazing Skye Sonczalla on this).
Kevin, I don't know if you shade your answers by trying to get a feel for the member's level (either by the way they word the question or by their length of membership here) so that your answer doesn't confuse someone who isn't able to follow it. I'm not talking about your answers, but I have seen instances when answers that I can see are perfectly responsive to the question go right over the head of the person who asked.