I have two feature requests that might be useful. I've looked and can't find them in the actual service desk application.
1. Spell check as you type. If there's a way to get it to highlight misspelled words similar to how Office Word does. I'm no programmer so I don't know if this is a browser thing more than Service Desk itself. I know Firefox does it using service desk, but the majority of our users still use Internet Explorer.
2. Spell check before the ticket is closed and the resolution sent. You can manually spell check and that works well. But sometimes you may forget and send the resolution anyway.