Installed 1.0.2 and tried to create a new thread (which did have subject and message longer than 10 chars) and I got this error:
The following errors occurred when this message was submitted:
1. Please complete both the subject and message fields.
2. The message you have entered is too short. Please lengthen your message to at least 10 characters.
I'm guessing the regex is striping everything out of those variables.