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My take on this? Serial killers are malicious, sharks are not. Sharks need to eat. Serial killers... they may think they need to kill, but it's not a necessity in the way that food is - life would go on with or without murdering someone (well, if someone was murdered, life wouldn't go on for them...). No, no; the shark's actions made me think of a forum lurker more than anything else.
I'm not saying that a shark acts more like a lurker than a serial killer. It just seemed to me that there are quite a few similarities. Hanging around in the background, just waiting for a good time to kill (post), studying the way things work before jumping in, being very very careful...
So, I won't say that lurkers and serial killers, I'll just leave you with this thought, and I do hope you dwell on it: how do you know that your friendly forum lurker isn't a serial killer, hmm? That's right. Think about it.
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