No. The majority of people who sign up to this community are here because they are suicidal, but any person in the world can potentially have suicidal thoughts. Those who use this forum are not a separate species - even if the various societies that we each come from treat us as such - so the users of this forum are not a monolithic entity; we do not automatically have anything in common other than the fact that most if not all of us hold the belief that suicide should be an acceptable choice.
The man walking his dog down the street that you live on could be using Sanctioned Suicide, your friend might be using this forum, or even your worst enemy could be too. If you wish to know whether or not a visitor to this site is "worth" knowing then you should try and get to know them as just another person, and not because they are suicidal.
I apologize if this post comes across as too abrasive or blunt, because this is not how I intended it to be interpreted.