Yep...I've wondered about these requests my damn self. Usually some guy who's posted pictures of his wife/girlfriend, he's getting a divorce and he believes his wife is going to find his secrets on his computer, or he's posted some extreme shit and feels like somebody is going to find out.
Reminds me of a story about my ex-wife. When it comes to the computer, I was a paranoid motherfucker. I knew for years that I was going to divorce my, now, ex-wife. I only stayed with her for my step-son (who won't talk to me now, because he thinks I fucked his girlfriend...which I didn't, but very easily could have...she is somewhat of a little slut and will fuck anything with a dick. No challenge=No deal for me.) and suffered for years for nothing. Anyway, I would go out of my way to have exotic passwords for everything. I never used the same password for any two emails or message boards and I always wiped the history from my computer before I logged off. We had a computer with Windows 98 on it and I freaking loved that because I could go into DOS and do the DELTREE trick. She was too stupid to have a keystroke logger or any other type of a spy system put on any computer I used...and just in case one of her asshole friends had helped her by doing it for her, I would check the Task Manager about once every 3 days or so just to see what was running in the background and I would check for new installations. About 6 months before I ran, I installed a Windows Washer program and an eraser program and cleaned the piss out of every computer I used. Well, lo and behold, about 3 weeks after I left her I had one of her friends call me (she was more of my friend than hers...I had been fucking this woman for 2 years) and tell me that she had paid some guy to come in and scour the computers to try to find something on me. SWING AND A MISS!!!! This woman told me that she was FURIOUS when the guy told her that the computers were clean and he couldn't find anything.