Well, I don't do it very often anymore. Occasionally I do, and I always regret it. I think that earlier on I had a secret hope of finding some piece of information that might transform my experience in some miraculous way. Or perhaps sometimes I think it might ease my anxiety to know all the potential negative outcomes so I can be prepared for them should they occur (yeah, that never works). Whatever the reason, it isn't helpful.
So now that I've been at the business of survivorship for a while, I know to limit my searches to trustworthy sites, and I know to stick with my original search terms. While knowledge is power in many cases, it is not always so.