Please fix quote and slash issues in posts

I just submitted a resource:
www.garagegames.com/community/resources/view/21813

When I go to edit this resource it replace the quotes with &quote; text. If you save at this point it hoses the resulting resource/post.

If I use a slash like for this:

'\0'

I have to put 2 slashes to prevent garbage as in this case:

'[[628872992532a]]'

The first example I actually had to use 2 slashes to get it work properly. The second I used one and it produces garbage.