Spoiler tags

[FelicityLemon]

Please could we have some. Like the [spoiler]insert text here[/spoiler] version I see on other film/sport boards. It'd be really useful.
Thanks!

People already can put this in thread title, or in body of their post, or choose to use a link rather than posting the spoiler in full.

MNHQ can't make people use the existing alerts - what exactly is it you want added to current options, and why would it be better used?

I should have explained better. The code creates a button that when clicked shows the spoiler material which is otherwise hidden