[dspillett]

> Whats the reasoning behind posting completely vague job descriptions (sometimes the location isn't even provided!).

Usually that is because there is no job. The recruitment agency is trying to farm candidate details for two purposes: firstly so they can make claims to employers about how many people they have on their books with given skillsets and secondly so they have people to present to companies when they register a position as available.

[flyinRyan]

It can also be political. Companies want to hire cheap foreign labor but are forbidden to if they can find native workers (various EU countries have this) so they'll advertise a job with bad conditions and low pay and then after not being able to fill it for some time they show it as evidence of skill shortage.