When editing a question: should we remove statements such as: thanks, thank you in advance ...?
I generally remove most commentary parts of a question. If there's a paragraph of backstory that doesn't actually contribute to the question I would remove it. I think the same applies to "Thanks" or "Any help is appreciated".
If it's the only thing I would remove, then I generally just leave it. But if I'm editing a post anyway then I will. The same goes for "UPDATE" or "EDIT".