Worst Internet Experience?

[failedALIAS]

Just recently I really got into CreepyPasta, obviously that may be a source of regret (and joy! But mostly regret).
What I want to ask you is what you think your single worst experience is on the wide and wonderful web!
This can be varied from [but not limited to]:

~ A horrifying discovery.
~ Lack of anything other than porn, gaming, and blogs.
~ Isolation from everything you once held dear.
~ Meeting (a) people(person) you fucking hate.
~ Even more Justin Beiber (however you spell it).
~ Or failure to achieve greatness (or whatever).

If I had to say (which I do ) then it would be the discovery of Rule 34. Nuff said. I was going to say reading Cupcakes, but I instantly got over that fifteen minutes ago. (I read it two hours from now.)