Clients and consumers are becoming more tech savvy with regards to photography. Or at least they think they are. Learning terms and acronyms have made them aware of the options of files but not the differences, i.e. some may ask a photographer, can you send me the images. others may now be requesting the RAW files, or high resolution TIFF files, all the while not knowing what the differences and subsequent advantages and drawbacks of them are.
Having a client requesting/demanding the Raw files and then complaining that there isn't enough "Punch" to the images will make all photographers bit their hands when trying to reply sensibly.
(one of my favourite quotes is from a client I had asking for higher resolution images - I had sent through edited 4mp files for them to use not their website - I asked, sure, what resolution do they want it in and what is it for? Their reply was, they want it in about 8megabytes resolution.... so that it fills their 42 inch Hdtv.... not realising that firstly Megabytes is the file size not the resolution and also not realising that no matter how big your tv is, the max resolution was 1080p which is about 2megapixels)
Lots of slapping forehead and biting fists that day.