Free and open discussion is one thing, but hammering a point home over and over and over and over again until the wood splits is something else - and I'm not aiming that comment at anyone in particular, as you'll find examples in most threads.

It's far better to make your point concisely and succinctly...!

Among my most prized possessions
are words that I have never spoken.
--Orson Card

The ability to quote is a serviceable substitute for wit.
--Somerset Maugham