I have less than 3000 rep on StackOverflow. Now that the new closing changes are live, I cannot supply a custom off topic message:
I can enter a custom off topic flag message without issue here on meta, though it only has three canned off topic reasons, rather than five.
I'm not sure if this is the same for users with enough rep to vote to close directly, but the lack of a custom message eliminates the ability to use the correct flag reason in some cases.
For example, I wanted to flag this question, which is simply off topic on SO. However, I can't use a custom message, and none of the canned ones are appropriate.
If this is by design, how should I flag such questions? This is not a case worth bothering the mods over, so I don't want to use a custom diamond attention flag.