generally killing a deal refers to something you can do over and over. But people don't generally fly the same route over the over. And anyway, if a single person does this deal over and over, the airline will shut it down even faster then this thread.
Okay, I will spell it out to you. Lets say 50 people who know this game well know about this, some of them will use it for their close relatives, and they KNOW the rules not to call the airline for anything, not even requesting a KSML ETC. If that's the end then this may go on the way its been going on for a while already.
The way
you are going, NUMBER ONE you tell the public "hey, there is a FD to TLV" now imagine a UA employee looks at this thread.
2) This is a public forum, hundreds of people are now going to book this and not only will it die a painful death, once they will realize they can cancel everybody else's tickets.