The post you are reporting:
If this happened to me I would ensure heads rolled. A person's computer is the biggest and potentially most revealing window into their lives you can get. I'm not just talking about internet history here, I'm talking about all the contact info stored on computer address books, all the financial transactions from online purchasing, online banking, etc etc. The potential for identity theft is absolutely staggering! I think you have no idea just what a serious and potentially life-altering experience this could have been.
For one thing, I would NEVER, not in a million years, give my computer to a stranger to repair. And if I did, I would want to pay the extra for them to come and do the repair at my house. It is a small price to pay compared to the potential for ID theft and the cost of all that nonsense. I am not suggesting that all PC repair people are crooked but the fact is, unless you know the person well, you are essentially handing your PC to a stranger. May as well give them your credit card and PIN number while you're at it.
Getting someone else's PC back is a really serious thing. I'd have hit the roof, in fact I would have gone ballistic had this happened to me.
TIP: When you get rid of old PCs always - ALWAYS - take the hard drive out, particularly if you do any online banking, shopping, or store other people's contact info. Someone who knows what they are doing can recover untold amounts of data from an old hard drive. Whenever I buy a new PC or Mac the previous machine's hard drive always gets removed and utterly destroyed in a bonfire.