Request: Spoiler tag feature

I think it would be a great idea to have spoiler tags on this forum, which is constantly needed in the Movie/TV Board and the Book Board.

Here is an example

For the end user who is posting, it would behave just like quoting where you highlight the text you want to quote and click the quote button. For this, you would highlight the text you want to hide for spoilers and click the spoiler button.

For the end user who is reading the posts, they would see a clickable block that says Spoiler. Once clicked on, it would reveal the text that was previously hidden.