The point isn&#x27;t to put some ironclad barrier between you, it&#x27;s just to make it harder for them. That&#x27;s enough to get a lot of people to just give up and move on. If people want to do it, why not let them? Social stuff doesn&#x27;t have to be all or nothing and it doesn&#x27;t have to be perfect. The lock on my front door won&#x27;t keep out a determined intruder, but it&#x27;s still extremely useful.