How many topics do you think you add to questions on average?

I feel like I should add at least five or six topics, and I sometimes add even more. I like to give people a variety of ways to end up at my question. Sometimes, however, I have seen people give only three topics, and perhaps others have provided even fewer.

How many topics do you place on a question on average? What is your thinking about putting topics on your question, both in terms of how many and in deciding which topics to put there? Do you use new topics that aren’t on the list? Are there topics that you put on almost every question you ask (for me “human behavior” is such a topic)?Do you see topics as useful or just a nasty chore?