"post comments with no usercomment checking" is ambiguous

Issue Summary

The access "post comments with no usercomment checking" sounds as if it is needed if users of a certain role should be able to post comments without being approved by the node author. It tells nothing about deletion, so I supposed that I have to check it in order to make users post comments that can still be deleted by the node's author.
In fact, checking this option restricts owners from deleting their nodes comments.

When I looked into the code, I saw that from a programmer's view "checking" means the checking routine, which the user doesn't know about. But access should be named the way a user understands it.

Either this option has to be called differently or the readme should explain the behaviour. I struggled 2 hours on different installation because I supposed there might be something wrong with the code.