Debate is always good, it stimulates the thinking process as well as shows different sides to arguments.
A few points to consider are -
The forums are public. The arguments can and will drive away some new members.
You also have no idea who is reading any particular forum at any given time.
We 'spy' on our enemies. (Enemies = people and groups that want to ban reptiles)
What makes anyone feel that they are not capable of 'spying' on the herping community in the same way?
I bet it makes their day when they find arguments, name calling and a few that encourage illegalities instead of having to manufacture their own bad info.
Why cut our own throats for them?