I have seen 1000s of small clans of 1 or 2 players. New though.
So here's my idea :
Join clan = When CC built

Create clan when :
  • Join a clan :
  • Donated 250 HS worth of HS of CC troops.
  • Experience 4 clan war victories [ must be participated in those victories]

Only after these are done can you start clan

Starting a clan :
  • Above 3 wants fulfilled !!
  • Cost = 50,000 coins
  • Experience Lv > 25


Only after these steps can a good leader be created. Going to clans and winning wars will actually educate players on how a clan should be. Donating will help players be good leaders . Experience needed so that quality leaders produced. It like this : Go to school [ clan ] and learn & then be a good leader .
Going to other clans and helping them also ensures that current clans with 1 and 2 players get more players get more recruitment and make clans more filled. Sometimes player might change his mind and not make a clan on seeing how good current clan where he / she is learning is!!
Free clan making will fill SC servers with small clans.

Plz tel me your thoughts about this !!