Your base karma score is sub-default. Your posts are below the default filter. You can adjust the filter in your forum post settings at the top of most thread view pages.
None of your posts have been deleted. I'll reply to your feedback forum thread too, but until you change your filter you won't be able to see it.
Edit: you can see this thread because I rated the initial post above default.
Edited, Jun 23rd 2008 5:22pm by Kaolian