Yep you're right Paul - apologies. The answer to my question is that some people are ignorant of piling hooks, chains, etc, but there are also boaters who prefer pins. As someone who finds mooring with pins to be the least preferable option I found that hard to understand, but we're still quite new to this and maybe we're just not very good at using pins yet (the only time we've unintentionally left the side was on pins during a particularly rainy period - a party widebeam went past us at about midnight when we were in bed - we sensed something wasn't quite right with our world and looking out of the bedroom porthole found ourselves looking down the canal rather than across it!! We must have been quite a sight in our nightclothes getting the boat back to the bank and mooring her again!)
Personally, we'll stick with the piling hooks whenever we can, but will investigate chains