I'm not sure what's worse - verbal diarrhoea from FISOs or the absence of anything at all at known busy aerodromes. There's an aerodrome near here which allegedly has an A/G service - yet many times I've called them on the way in only to get a deafening silence. When they're meat-bombing, it's handy to know what's going on to sequence the arrival - and not just to be told on final that 'We WILL be dropping in 1 minute'.......
Personally, I reckon that an aerodrome which has simultaneous gliding, parachuting and light aeroplane flying shouldn't be permitted to do so unless it has either an A/G radio operator or preferably a FISO on duty during promulgated hours of such activity. I'm not that keen on taking-off with parachutists landing all around me about whom I knew nothing as happened once to me at this aerodrome!