And what will happen if i removed the rss from the blog, does it make any sense to stop the copying content. Many sites are using my rss for copying the content and many times their content comes in the top of search and i feel like i m a fool.
just put a copyright sign with the name of your website and a link to it at the end of your RSS. This will soon show the readers of the other blogs the this is just a copy of your original content
Yeah, I like when sites use my RSS. First, I only do excerpts. Second, there's a good chance that links will be in there. And that excerpt doesn't need to be part of the story. It could be a description about the story. That said, you can dump the RSS to stop it. If you're using WordPress, you can just put the "more" tag at the start of the post and select to show excerpts (just one example).