Every forum has its own rules, written and unwritten. It seems here the unwritten rule is "no thanks is needed". I rarely see OPs pop in and thank others except for the "regulars". I don't think that's right, but that's the way it is. Other forums I'm on, nearly every single thread with a question has a thanks at the end. Even from people who didn't ask the OP question.
Answering "newbie" questions is the same thing. Here, I try to answer them when I can. And most of the "regulars" seem to do so also. But on one auto forum I'm on, "newbies" get berated pretty quickly if they didn't try search first. So if I can't find an answer I think might be there, I preface my question with "tired a search but couldn't find...".