i can say that 75% of the requests are made by people that doesn't know what is the job to be done, and usually apply a title like : easy job, quick job, simple job ...
i've answered a lot of requests in the last year, and i can say that most were not even aware that we had to actually Evaluate/Develop/Code/Test/Install the jobs they requested...
i even receive requests by PM even if i did not write anywhere that i was available... looks like they think we will do the job just because we are coders...