Comment fields for hidden posts.

Hey everyone.

Today i posted a reply in a thread that had nothing todo with the originating thread itself. I posted it as a reply to someones post within the thread. I marked that post as hidden. I would like to know if there is a possibility when marking a thread as hidden to be able to make a comment in the thread itself. Instead of only having it say "this post is hidden", how about a little space for some comments like "this thread is hidden because of bla bla bla". Just so some people can skip it, the best example was the one i provided. So the people know that the specific post may be offtopic. Any suggestions to that?

Cheers.