Look at this error I got while using the Community.
Read the title you can still read in the dim area. I tried 3 more before just slapping the keyboard.
Meanwhile, this is fine:
Ask @neil about this, but first post the title that wasn’t working; it’s very hard to read what is in the dimmed-out area in the image.
The title in the dim area is “Let’s document why using executeInitialRequestDataModifications is Important.”
@wgross The problem is the default “title max word length” setting is 30, which means that words longer than 30 chars are rejected. Since this is a community where words include things like “executeInitialRequestDataModifications”, you should probably increase that. 
There should totally be better feedback though.