Etiquette
One more thing...
I think some of the people who're set on a pattern for a field derrive this from safety requirements of full-scale airports.
Sure... sometimes this applies. But it really burns me when a flier's the ONLY flier on the field and after he lands someone wants to chew him up for not following the pattern.
GET OVER IT. It's NOT a full scale field and you're NOT piloting a full-scale plane! It wasn't even his darn airplane! The club does NOT have a strict pattern restriction, just a beginner's area and beginner's times to fly. Restrict people a little more and see how it attracts people!
When you have 4-8 people in the air (again, our field's big enough for this) at the same time, people I guess should find some organization.... but are you really going to tell a sailplane pilot to 'do the pattern'?