I thought all or a majority of words need to be capitalized when it's a title. The form that I fill out to ask a question on here says title and after the question is submitted it's displayed using a larger font. Therefore I see this a cue to capitalize all or a majority of words in the title.
I was surprised to see a user recommend that I use sentence casing for one of my questions and for another one it got edited to use sentence casing where only the first word is uppercase. Are they right or wrong for doing that? What's going on here?