Prior art (state of the art or background art), in most systems of patent law, constitutes all information that has been made available to the public in any form before a given date that might be relevant to a patent's claims of originality.
Since there is no restriction on form, then you could argue that the art has been made available to the public.
How about we turn this around: Other than pirating commercial software or installing spyware, what do you lose by an inability to side-load without a jailbreak?
We'll never know the answer to this, because we'll never know what apps would have been available if side-loading existed.
So Slashdot decided to change that sentence for some reason.
No jobs naturally exist, which cost more in wages than the wealth they generate for the employer.
True, but what is the minimum natural wage a job can have? Suppose for a particular set of fields, there is a greater supply of workers than needed, why wouldn't the wage for any job in that field approach zero, regardless of the profit made by the employer?