Somebody just edited my post, saying they removed "fluff". What they really removed was me briefly introducing myself, saying I am new and will take feedback, and me saying "Thanks!" at the end of the post.
I think it's worth bearing in mind that StackExchange is closer to Wikipedia than it is to social media sites like Facebook. People come to these sorts of site to ask questions and get knowledgeable answers. It would be very strange to go to a Wikipedia article and be greeted by something like "Hi, I'm Bob, this is my first Wikipedia edit, I'm single and have a house full of cats. Thanks for reading!" at the start of the page.
The reason that 'fluff' gets edited out is because
- It obscures the real details of questions and answers.
- It becomes dated – Questions and answers on the site are intended to have longevity and be available over long periods of time. It might be your first post today but a year or two down the road and it's just another post.
- Personal introductions belong in your profile page – People who are interested can read all about you there. People who aren't, don't have to see it.
- People providing answers will assume that you're grateful so there's no need to add "thanks" or "thanks in advance" to a question.
The ethos of Stack Exchange is Questions and Answers. Just that. While the Code of Conduct expects the community not to be rude or unpleasant to each other, no-one needs any more than a question to which they give an answer.
That's actually in the Tour (if you take the Tour and read all the way to the bottom you get another badge):
Occasionally, the context to a question might be needed and that might even be a bit about you: "I was kayaking down the Amazon and someone shouted..." but generally we don't need any introduction as it's not usually relevant to the question; and we don't need "Thanks" or anything. You can express thanks by upvoting (when you have the rep to do that). That's all that's expected. Anything more than just a question and its answer is superfluous and can be edited out by any user [some users will need to suggest an edit and have it approved].