So this happened. A fairly new user posted a question with the title
Question about Code;Geass R2 Episode 18
He tried to keep it as spoiler free as possible. This title was then shortly after changed by a different user to
Why did Lelouch lie to Suzaku that he ordered Euphemia to massacre all the Japanese people?
While the first title was not a great title, it could be argued that the second title completely ended up on the other end of the spectrum spoiling too much, but that's not what I wanted to talk about. The first title, should indeed have been made better and while I understand that searchability is more important than spoiling and we should indeed edit posts for the greater good, where do we draw the line between butting in and editing it ourselves or telling the poster about our guidelines, making him learn and do it him/herself? At the meta post it is said (among other good points) that we should
Make posts easier to understand, which helps both readers and the original poster
Yet, on the other hand we should keep in mind that
When you edit other's posts, you're still editing their content.
So how far should we take our editing? What is more important? Letting people do they own thing or impose our guidelines onto them, whether they want it or not, because in this case OP was clearly not happy about the change?
Another example mentioned by mirroroftruth: https://anime.stackexchange.com/posts/13326/revisions