That's permitted by the rules if you think that the alteration is justified. If you're worried about being censured, you can include a comment on your new post

That's permitted by the rules if you think that the alteration is justified. If you're worried about being censured, you can include a comment on your new post "The original title was XYZ I altered it because reasoning ABC", so that if the mods are looking at it later, they understand your reasoning and can offer you a followup reply.