This site doesn't tend to up or down-vote much which therefore skews the votes you do get. As an example, I got 77 votes for an answer on Cooking Stack Exchange where I basically posted a photo of a kitchen strainer which took me a couple of minutes to take. On the other hand, I've spent hours on posts which only got a handful of votes. For example this one about interrupts which only got 11 upvotes (maybe I didn't spend hours on that particular one, but I still get a very low upvote rate).
I had down-votes when I initially joined this site, and now I am a moderator. I suggest you ignore the implied criticism and just do your best to post interesting questions, and also interesting answers and let your work speak for itself.
To a certain extent people will downvote a question if it looks like you haven't tried all that hard to research before posting, or if there is a similar question already with an answer. I'm not saying this applies in your case, but that tends to be what happens.