If in 6 months magically Bitcoins are $100,000 each then the incentive to target users is now much much higher.
What does the BTC/USD ratio have to do with the incentive to target users?
Do you really have to ask that question? Hackers typically go after the easiest targets. They don't and wont typically go after the security experts using cold storage (at least not at first). However they'll collect information on everyone and gather intel through services which will ask for information to help them with their scams. They will then use this intel as part of the recon so that when they do launch their attack they'll know exactly your strengths and weaknesses.
If you're someone who likes to gamble and you log into a gambling site you could find that the whole site gets mysteriously hacked and shut down with all the coins missing. The whole event could have been planned as a honeypot to attract suckers into putting their money on the site and when enough money is given to the site the hackers could roll it all up and take all the money. The higher the price for BTC at the time the more incentive they'll have to do stuff like that. The more anonymous BTC is the more likely they'll do it thinking they can get away with it.
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So when people say I'm being paranoid it might be because I know a lot about this subject and have reason to be.
Hate to go even more offtopic here, but the ones that know something would never bother adding the words "I know a lot about this" for reasons such as not needing to tell they know a lot about the subject, and by knowing that they have a lot to learn.
I know a lot but not everything. Someone here probably knows more.
There is a lot of inherent risk involved in using Bitcoin services at this time, and while the client itself may be secure we don't vet third party services at all and that is a real problem.
I'm not saying taint lists are a good solution.