Once I heard this, I realized "Shoot, I contracted her. Am I legally liable for her injuries?" (Fortunately for me, she shrugged it off, and seemed to be covered under some insurance of her own.) And if she had not delivered the furniture due to her broken foot, would TaskRabbit make me look like the bad guy for asking for my money back? (Fortunately again for me, she made the delivery, amazingly.)
While things turned out OK in the end, suddenly the whole service felt much riskier, for both the employee and the consumer - and I felt irritated at TaskRabbit for subjecting me to that risk without some sort of a safety net in place. (Heck, I would have paid extra for one, some sort of "TaskRabbit Insurance.")
I have to say, as much as I dislike the idea of tight regulations on workers, and can see directly how much cheaper my services are removing those regulations...I think next time I'll pay the premium for a more legitimate furniture move, at least, until the law catches up to services like TaskRabbit.
In the US, hiring contractors exempts you from many of the taxes and liabilities of hiring employees, and they are also exempt from most benefits (their right to litigation against the company is also limited).
US readers will certainly be familiar with Vector (ie, Cutco knives) - they get away without providing any benefits/insurance, without reimbursing for expenses such as gas/phone bills, and with paying what often amounts to minimum wage because all of their salesmen are college students who are hired as 'contractors'[1].
Don't think I'm saying that contracting is bad - the same laws allow others to make very large sums of money working as contractors. It really just depends on what the setup with the company is.
[1] I may be confusing some of the details with other similar companies, but I know Vector engages in at least some of these practices, all of which are commonly practiced.
I guess this is not interesting for must of you US readers but it could be telling of what could happen to your TaskRabbiters.
However, at least in Belgium this kind of micro-entrepreneurship is actively discouraged. Contractors require an accounting-certificate or academic degree in order to setup a company (or sole tradership).
Skipping the basic step of registering as a company can leave you or the customer liable to all sorts of fines, depending if a court thinks the customer or the worker is at fault. The issue is sensitive because it involves manual labour, and there is a huge incentive to utilize black labour as labour costs are very high.
This renders a service like TaskRabbit a legal hazard for customers and workers, but the service itself can operate legally.