In your account setting you can set showdead=yes. It's not as many as you probably think. Email the moderators (link is in the footer). Other users can also cli

In your account setting you can set showdead=yes. It's not as many as you probably think. Email the moderators (link is in the footer). Other users can also click 'vouch' on comments, I've done that a couple of times. If comments are short or non-substantial others tend to ignore them. And I don't know how many readers have showdead=yes switched on.