In reply to Jimbo C:
I do question whether people criticising chalk use at new venues know anything about crag development.
You might think that your pristine little trips down to (insert name of popular crag) have no affect on the environment, but nearly every crag would have been a mass of vegetation and filth before it was developed.
These days chalk plays a massive role in getting never-climbed-on holds into decent condition.
Think about the example you're setting for other people, being unduly critical about a commendable process.