I am a little bit confused with this post.
If you do not want to share recipe then do not post it.
Other recipes get name after the "creator" like Jamil Evil Twin...
But if neighbor of mine drinks my beer he does not care what recipe I used.
Lets get back to brewing. Shall we?
I don't make a big deal about it, but if asked about the recipe, I'll share where I got it or what I based it on. When I give beer away I don't say "Here's some beer, but I didn't come up with the recipe."
I don't think the question is if people use your recipe, it about giving credit to the creator.
I bet I could get away with recapping and delabeling some commercial beer and claiming as my own, but I'm not going to do that....