Right, this is what I have so far! I am still working on proper spoiler tags (though as Pop said, spoilers should really only be in the spoiler section for DW anyways, though they will be needed for the TW and SJA stuff). Anyways, for now I have this idea.
When you write a post, if there is a section you want to spoiler, then highlight the section and click on the option above the text box that has a G in it with a green background.
SPOILERThis will highlight it red (I dont know how to change the colour yet)
To make it so that it is more spoilery, highlight again and then change the colour to red also
SPOILERAnd then when you hover over it, the spoiler will be underneath.
Sorry its not the best solution, but I am working on proper tags so you should be able to have them soon and I will let you know as soon as I sort something
Is that ok?
That would've been my suggestion!
If a tag did that automatically that could work.