We learn a great deal from the cruisers. Tips on docking, fueling, cruising, etc. Speakeasy's backstay adjuster was stuck. I didn't even know how bad it was because I didn't know how to use it. Basically, the adjuster pulls the top of the mast back and tightens the forestay. This can flatten the jib when sailling close the the wind, which improves the sail trim and, thus, sail power.
Really, the purpose of the club is to do something enjoyable (sail) and be with friendly others who like to do the same thing. It's about friends telling stories in the moonlight.