Actually, more often than previously. The FAA used to just issue fines to the company and when they decided that action was having no effect whatsoever in getting f/as to follow the FARs, they started fining individual f/as. Now last I heard it was for the very most egregious violations--allowing passengers to put carryon bags on the floor on bulkhead rows, knitting/reading/etc. on the jumpseat and not doing the required walkthroughs during flight. Not being in uniform--no wings or any sort of id to identify you as a crewmember kind of thing.
The most often fined incident--f/as doing non-safety related activities after the safety demo when we are supposed to be strapped into our jumpseats. However, from what I heard, it is not doing beverage service,etc., it is standing in the galley and talking during taxi.
OK one paragraph you say , They are being fined for not doing the required walk throughs, The next paragraph you say They are being fined for not being in their jumpseat for taxi. So where should they be in the jumpseat strapped in when its turbulent or out bouncing around risking injury to themselves and others when the seatbelt sign comes on.