Foxy:
Fine, but make the point in a non-agressive tone. All ATCOs are professionals, but most pilots (at fields which are sometimes A/G) are amateurs. The last thing you want to do is to discourage pilots from calling ATC. There are plenty of references in threads here to pilots who are nervous enough about talking to ATC.
VATCO - similarly, I'm sure that with 90% of pilots, just like 90% of people, a chat achieves a better overall result than a big stick
AA.