Guys and Gals,
I agree that debating creates in-groups, and to a certain extent that cant be helped. A lot of people who debate a lot are also friends. The important thing to remember is that the groups shift and change to include people new to the circuit, who begin to debate quite a bit. James Morris (to name someone from the top of my head) from Alleyns is just one of many new mates that i didnt know last year but whom i would certainly say is in the "group".
Plus debating isnt unique this this respect. Its pretty much similar in athletics, and other sports and past times.
Love to you all
Lew