When you type in, for example, "Message is attached", the prompt shows:
Did you forget to add an attachment?
2 nos of match in body.
--> attached, attach,
0 nos of match is subject.
This is fairly ugly, and is more detailed that most users will need. I'm sure it's great as a developer to see the details about what the plugin is doing, but that should be only enabled by a debug setting.
"2 nos of match" doesn't parse to me as correct English - I read "nos" as the plural of "No" (as in, opposite of "yes"). Additionally, it's misleading: I only typed "attached", so that is only one match, but
it says there are two. (I of course understand why it happens, "attach" is a substring, but from a UX point of view it doesn't make sense).
I would suggest the body is instead:
It looks like you meant to attach a file, but there are no attachments. Would you like to send anyways?
(This would work well in conjunction with